Cushion|Lab Grown|IGI

10.42ct G SI1 Cushion Lab Grown Diamond

ID • G/SI1 • IGI LG542212959

Shape and cutting style on the report: Cushion modified brilliant

Certificate IGI LG542212959

Diamond specifications and retailer prices

From $1,385 USD
£1,091 GBP
As of November 1, 2026
Save $5,842 USD (81%) vs most expensive(unlock to see where)
8 retailers carry this diamond
Most expensive: $7,227 USD at Adiamor · As of October 31, 2026
View at Adiamor

About this 10.42ct lab-grown cushion diamond

This 10.42ct lab-grown cushion sits in the over five carat band, graded G colour (near-colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by IGI LG542212959 or 542212959. Listed at 8 retailers as of October 31, 2026, with prices from $1,385 to $7,227, a $5,842 spread on the same certified stone. Adiamor lists it at $7,227. 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

10.42
Carat
G
Color
SI1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle37.5°
Pavilion angle40°
OriginLab Grown
Grading LabIGI
CertificateIGI LG542212959
Dimensions12.83 × 12.70 × 8.42 mm
L/W Ratio1.01
Girdle conditionFaceted
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process and may include post-growth treatment Type IIa
Top View
12.83 mm12.70 mm10.42 ctG / SI1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG542212959
Side View
Table 64.5%Crown 37.5°Girdle: THN-MEDPavilion 40°Culet: NoneDepth 66.3%

Caratlytics Score

How it works →
A
Excellent
Excellent quality and great value
Unlock full score analysis
See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 1
Current: $7,227 USD|Low: $1,385 USD|High: $13,745 USD|Avg: $5,153 USD
Adiamor
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
November 1, 2026
Retailer 4$1,385 USD
Retailer 7$1,725 USD
Retailer 9$1,830 USD
Retailer 8$2,084 USD
Retailer 5$2,189 USD
Retailer 2$2,453 USD
Retailer 6$2,493 USD
Retailer 3$7,198 USD
Adiamor$7,227 USD
Retailer 11$10,250 USD
Retailer 10$13,745 USD

5 data points across 11 retailers

8 retailers$1,385 USD to $7,227 USD

A
Cheapest Retailer
-
$1,385 USD
£1,091 GBP
A
Retailer 2
-
$1,725 USD
View
A
Retailer 3
-
$1,830 USD
HK$14,300 HKD
View
A
Retailer 4
-
$2,084 USD
View
A
Retailer 5
-
$2,189 USD
£1,723 GBP
View
B+
Retailer 6
-
$2,453 USD
View
A
Retailer 7
-
$2,493 USD
€2,374 EUR
View
Most Expensive
B
Adiamor
D-82828847 · Oct 31
$7,227 USD
View
7 more retailers have this diamond
Prices start from $1,385 USDSave up to $5,842 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.

A
10.42ct Cushion
$1,385 USD