Cushion|Lab Grown|IGI

10.20ct H SI1 Cushion Lab Grown Diamond

EX • H/SI1 • IGI LG852619903

Shape and cutting style on the report: Cushion modified brilliant

Certificate IGI LG852619903

Diamond specifications and retailer prices

From $3,674 NZD
£1,628 GBP
As of November 1, 2026
Save $7,381 NZD (67%) vs most expensive(unlock to see where)
2 retailers carry this diamond
Most expensive: $11,055 NZD at Brilliant Earth · As of October 31, 2026
View at Brilliant Earth

About this 10.2ct lab-grown cushion diamond

This 10.2ct lab-grown cushion sits in the over five carat band, graded H colour (near-colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by IGI LG852619903 or 852619903. Listed at 2 retailers as of October 31, 2026, with prices from $3,674 to $11,055, a $7,381 spread on the same certified stone. Brilliant Earth lists it at $11,055. 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

10.20
Carat
H
Colour
SI1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle35.8°
Pavilion angle35.2°
OriginLab Grown
Grading LabIGI
CertificateIGI LG852619903
Dimensions15.35 × 11.21 × 7.41 mm
L/W Ratio1.37
Girdle conditionFaceted
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
15.35 mm11.21 mm10.20 ctH / SI1
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG852619903
Side View
Table 63.0%Crown 35.8°Girdle: STK-THKPavilion 35.2°Culet: NoneDepth 66.1%

Caratlytics Score

How it works →
B+
Very Good
Strong quality and value balance
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Price History

Last verified: Nov 1
Current: $11,055 NZD|Low: $3,643 NZD|High: $11,055 NZD|Avg: $7,357 NZD
Brilliant Earth
Retailer 2
November 1, 2026
Retailer 2$3,674 NZD
Brilliant Earth$11,055 NZD

2 data points across 2 retailers

2 retailers$3,674 NZD to $11,055 NZD

B+
Cheapest Retailer
-
$3,674 NZD
£1,628 GBP
Most Expensive
B
Brilliant Earth
22380555A · Oct 31
$11,055 NZD
$6,220 USD
View
1 more retailer has this diamond
Prices start from $3,674 NZDSave up to $7,381 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+
10.20ct Cushion
$3,674 NZD