1
Choose your
Diamond
2
Choose your
Setting
Browse
3
Complete
Ring
Preview Image
View Size
Hand Image
Certificate
IGI-imageIGI
Dimensions
Guarantee
Wholesaler direct:Marlowe & Co
SarahCallieMason
Got questions? Bring them on!
Virtual shop with one of our diamond experts.
IGI-imageIGI CERTIFIED
17/18 quality

12.57 Carat round lab Diamond

excellent cut
G color
VS1 clarity
$13,260
Financing options
Apply March End Sale Offer
Save an extra $4,215 with coupon
-$4,215
Earrings
1/3 ct.tw. lab diamond earrings
$290FREE
TOTAL SAVINGS$4,505
30-day returns, no fine print.30-day returns, no fine print.
Free insured shipping by Wednesday, Apr 8
if you order in the next 2 hours. Need it sooner?
Learn About Your Diamond
17/18 quality

Cut:

7/8

You’ve selected a 12.57 carat Round lab diamond. 0% of our users choose round diamonds. Learn more about them here.

Cut is the most important factor. When an experienced gemologist picks up a diamond grading report, their eyes go to very specific values. They are looking to see if these fall within the desired ranges. Seemingly unimportant values like the depth percentage have a large effect on how your diamond will sparkle - and these values differ for each shape.

Follow the checklist prepared by our gemologists to see how your diamond fares. If it misses by a little bit on one or two, that’s fine, but we recommend trying to find a stone that passes on all:

Good
Very Good
Your diamond
Excellent
Rare Carat Ideal
PropertyTargetDiamond
Cut
Excellent
Excellent
Symmetry
Very Good or better
Excellent
Polish
Very Good or better
Excellent
Girdle Percentage
2.5% - 4%
3.5%
Girdle Thickness
Thin to Thick
Med.
Table
54% - 60%
56.0%
Depth
59% - 63%
62.8%
Crown Angle
33° - 35°
36.3°

Color:

3/3

Your 12.57 carat Round lab diamond is graded G color (Near Colorless), and you can read more about G color diamonds here.

Color is graded beginning with D (Colorless). Learn more about diamond color here. The market prices colorless diamonds higher as they are rarer, but some people prefer warmer colored stones.

Our gemologists check for following color issues before recommending a diamond:

(K-Z)
Your diamond
(G-J)
(D-F)
PropertyTargetDiamond
Color
K-D
G
Artificial Treatment
No
No
Fluorescence Color
None or Blue
None
Fluorescence Strength
Medium or less
None

Clarity:

7/7

Your 12.57 carat Round lab diamond is graded VS1 clarity, which stands for Very Slightly Included 1. Read more about VS1 clarity diamonds here, or learn more about diamond clarity in general here.

There are minimum clarities our gemologists prefer for each shape, but beyond that clarity is a matter of budget and preference. People typically aim for an eye clean stone. Also, our gemologists have certain deal-breakers when it comes to clarity. For example, our gemologists always avoid stones with a cavity, because with one wrong hit your diamond can crack.

Use the checklist below to ensure your diamond passes. Consult us before purchasing to see if any other nuanced issues are present:

SI2-SI1
Your diamond
VS2-VS1
VVS2-VVS1
IF-FL
Very Slightly Included 1:
Inclusions are typically not visible to the naked eye. Get an expert opinion
PropertyTargetDiamond
Clarity
SI2 or above
VS1
Cavity
No
No
Chip
No
No
Knot
No
No
Laser Hole
No
No
Etch Channel
No
No
Patch
No
No

Diamond Size: 12.57 Carat

A diamond's carat weight is determined by its size, with larger diamonds weighing more. Learn more about carat here.
However, it's important to note that carat weight is not the same as size, as other factors such as depth and shape can also impact how large a diamond appears.
Get an expert opinion on this diamond
Hand Image BackgroundHand Image
Actual diamond size on size 6 hand
What they’re saying about us
“The secret to buying the perfect diamond.”
Reviews
5.0
Based on 7730 reviews
JEFF H.
Today
Amazing diamond ring at an amazing price. Thank you! She loves it!
Jim hill
Today
Absolutely beautiful ring my wife loves it
Diego Arredondo
Today
Very pleased with my ring 💍, just as pictured.
Donald
2 days ago
My wife loved her ring.
Nigel Schnackenberg
Today
Super easy. Very quick service and shipping. Diamond was exactly as described. Had a specialist look at it and they said it was 100% what was described and matched the quality ratings provided by Rare Carat. Great experience.
Show more
Lawrence
2 days ago
Great product and customer service.
Mackenzie Jernigan
2 days ago
User review image thumbnail
The ring came out perfectly and the price was amazing. I highly recommend Rare Carat. Their customer service was fantastic. We had to split cost between a wire and cards. They were so accommodating. The CEO chimed in and provided amazing inputs. The team was a pleasure and I look forward to getting the band through them along with our engagement ring.
Show more
Jared
4 days ago
11/5 stars according to fiancée Also it arrived by/before the original delivery date
Sarah Ciriaco
2 days ago
Beautiful ring, exactly as pictured. Prompt service, email updates on progression from inspecting the diamond to adding it to the ring setting. Packaging was great! She said YES!
John
4 days ago
Wow it’s a beautiful ring and my wife loved it, service was amazing.
Read thousands more