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 $2,067 USD
£1,628 GBP
As of November 1, 2026
Save $4,153 USD (67%) vs most expensive(unlock to see where)
2 retailers carry this diamond
Most expensive: $6,220 USD 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 $2,067 to $6,220, a $4,153 spread on the same certified stone. Brilliant Earth lists it at $6,220. 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
Color
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
Unlock full score analysis
See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 1
Current: $6,220 USD|Low: $2,050 USD|High: $6,220 USD|Avg: $4,139 USD
Brilliant Earth
Retailer 2
November 1, 2026
Retailer 2$2,067 USD
Brilliant Earth$6,220 USD

2 data points across 2 retailers

2 retailers$2,067 USD to $6,220 USD

B+
Cheapest Retailer
-
$2,067 USD
£1,628 GBP
Most Expensive
B
Brilliant Earth
22380555A · Oct 31
$6,220 USD
View
1 more retailer has this diamond
Prices start from $2,067 USDSave up to $4,153 USD

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
$2,067 USD