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0.51ct J SI1 Round Lab Grown Diamond

EX • J/SI1 • GIA 6552565360

Certificate GIA 6552565360

Diamond specifications and retailer prices

From $1,505 CAD
$1,075 USD
As of October 30, 2026
2 retailers carry this diamond
Most expensive: $4,259 CAD at MOH London · As of October 29, 2026
View at MOH London

About this 0.51ct lab-grown round diamond

This 0.51ct lab-grown round sits in the half to three-quarter carat band, graded J colour (near-colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by GIA 6552565360. Listed at 2 retailers as of October 30, 2026. SI-grade stones are eye-clean roughly 60 to 70% of the time at this carat range. Check the inclusion plot on the cert and ask the retailer for high-resolution video before buying.

The 4Cs

0.51
Carat
J
Color
SI1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
OriginLab Grown
Grading LabGIA
CertificateGIA 6552565360
Dimensions5.12 × 5.09 × 3.19 mm
L/W Ratio1.01
Top View
5.12 mm5.09 mm0.51 ctJ / SI1
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 6552565360
Side View
Table 56.0%CrownGirdlePavilionCuletDepth 62.6%

Caratlytics Score

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B
Good
Decent quality, room for better deals
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Price History

Last verified: Oct 30
Current: $4,259 CAD|Low: $1,505 CAD|High: $4,385 CAD|Avg: $2,733 CAD|-2.9%
MOH London
Retailer 2
October 29, 2026
Retailer 2$1,505 CAD
MOH London$4,259 CAD

4 data points across 2 retailers

2 retailers

B
Cheapest Retailer
-
$1,505 CAD
$1,075 USD
Most Expensive
MOH London
6552565360 · Oct 29
$4,259 CAD
£2,396 GBP
View
Price under review
1 more retailer has this diamond
Prices start from $1,505 CAD

Carat Hunter is not affiliated with, endorsed by, or sponsored by any retailer listed. Retailer information is from publicly available sources and may not be current. Verify details directly with the retailer before purchasing. Return terms as we hold them. Check the retailer's own returns page before you buy.

B
0.51ct Round
$1,505 CAD