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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 $1,972 AUD
£1,091 GBP
As of November 2, 2026
Save $8,317 AUD (81%) vs most expensive(unlock to see where)
8 retailers carry this diamond
Most expensive: $10,288 AUD at Adiamor · As of November 2, 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 November 2, 2026, with prices from $1,972 to $10,288, a $8,317 spread on the same certified stone. Adiamor lists it at $10,288. 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
Colour
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
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See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 2
Current: $10,288 AUD|Low: $1,972 AUD|High: $19,568 AUD|Avg: $7,172 AUD
Adiamor
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
November 2, 2026
Retailer 2$1,972 AUD
Retailer 8$2,456 AUD
Retailer 10$2,606 AUD
Retailer 9$2,967 AUD
Retailer 4$3,116 AUD
Retailer 6$3,492 AUD
Retailer 7$3,549 AUD
Retailer 5$8,193 AUD
Adiamor$10,288 AUD
Retailer 3$14,592 AUD
Retailer 11$19,568 AUD

6 data points across 11 retailers

8 retailers$1,972 AUD to $10,288 AUD

A
Cheapest Retailer
-
$1,972 AUD
£1,091 GBP
A
Retailer 2
-
$2,456 AUD
$1,725 USD
View
A
Retailer 3
-
$2,606 AUD
HK$14,300 HKD
View
A
Retailer 4
-
$2,967 AUD
$2,084 USD
View
A
Retailer 5
-
$3,116 AUD
£1,723 GBP
View
B+
Retailer 6
-
$3,492 AUD
$2,453 USD
View
A
Retailer 7
-
$3,549 AUD
€2,374 EUR
View
Most Expensive
B
Adiamor
D-82828847 · Nov 2
$10,288 AUD
$7,227 USD
View
7 more retailers have this diamond
Prices start from $1,972 AUDSave up to $8,317 AUD

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
$1,972 AUD