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0.51ct K SI1 Round Lab Grown Diamond

EX • K/SI1 • GIA 2566108414

Certificate GIA 2566108414

Diamond specifications and retailer prices

From $1,528 NZD
As of November 6, 2026
Save $2,048 NZD (57%) vs most expensive(unlock to see where)
2 retailers carry this diamond
Most expensive: $3,576 NZD at MOH London · As of November 1, 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 K colour (faint-tinted) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by GIA 2566108414. Listed at 2 retailers as of November 1, 2026, with prices from $1,528 to $3,576, a $2,048 spread on the same certified stone. MOH London lists it at $3,576. 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
K
Colour
SI1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceStrong
OriginLab Grown
Grading LabGIA
CertificateGIA 2566108414
Dimensions5.16 × 5.15 × 3.20 mm
L/W Ratio1.00
Top View
5.16 mm5.15 mm0.51 ctK / SI1
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceStrong
CertificateGIA 2566108414
Side View
Table 58.0%CrownGirdlePavilionCuletDepth 62.1%

Caratlytics Score

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B
Good
Decent quality, room for better deals
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Price History

Last verified: Nov 6
Current: $3,576 NZD|Low: $1,528 NZD|High: $3,701 NZD|Avg: $2,477 NZD|-3.4%
MOH London
Retailer 2
November 1, 2026
Retailer 2$1,528 NZD
MOH London$3,576 NZD

5 data points across 2 retailers

2 retailers$1,528 NZD to $3,576 NZD

B
Cheapest Retailer
-
$1,528 NZD
Most Expensive
C
MOH London
2566108414 · Nov 1
$3,576 NZD
£1,583 GBP
View
1 more retailer has this diamond
Prices start from $1,528 NZDSave up to $2,048 NZD

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
$1,528 NZD