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Cushion|Lab Grown|IGI

10.05ct G VS1 Cushion Lab Grown Diamond

ID • G/VS1 • IGI LG821678431

Shape and cutting style on the report: Cushion modified brilliant

Certificate IGI LG821678431

Diamond specifications and retailer prices

From $8,399 AUD
$5,900 USD
As of November 1, 2026
Save $17,919 AUD (68%) vs most expensive(unlock to see where)
11 retailers carry this diamond
Most expensive: $26,318 AUD at Taylor and Hart · As of October 31, 2026
View at Taylor and Hart

About this 10.05ct lab-grown cushion diamond

This 10.05ct lab-grown cushion sits in the over five carat band, graded G colour (near-colourless) and VS1 clarity (very-slightly-included), with a top-tier cut grade and certified by IGI LG821678431 or 821678431. Listed at 11 retailers as of October 31, 2026, with prices from $8,399 to $26,318, a $17,919 spread on the same certified stone. Taylor and Hart lists it at $26,318. Lab-grown prices in the 2ct and up range have fallen 40 to 60% over the last 18 months. Use the cross-retailer spread above to find the lowest current listing.

The 4Cs

10.05
Carat
G
Colour
VS1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle35.1°
Pavilion angle33.7°
OriginLab Grown
Grading LabIGI
CertificateIGI LG821678431
Dimensions16.53 × 10.40 × 6.15 mm
L/W Ratio1.59
Culet sizeLarge
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
16.53 mm10.40 mm10.05 ctG / VS1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG821678431
Side View
Table 62.0%Crown 35.1°Girdle: STK-THKPavilion 33.7°Culet: LargeDepth 59.1%

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: $13,868 AUD|Low: $7,396 AUD|High: $26,318 AUD|Avg: $13,432 AUD|-0.2%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Taylor and Hart
November 1, 2026
Retailer 5$8,399 AUD
Retailer 3$9,518 AUD
Retailer 2$9,856 AUD
Retailer 6$9,858 AUD
Retailer 10$10,327 AUD
Retailer 8$11,350 AUD
Retailer 4$11,356 AUD
Retailer 7$13,733 AUD
Retailer 1$13,868 AUD
Retailer 9$22,820 AUD
Taylor and Hart$26,318 AUD

37 data points across 11 retailers

11 retailers$8,399 AUD to $26,318 AUD

Cheapest Retailer
-
$8,399 AUD
$5,900 USD
B+
Retailer 2
-
$9,518 AUD
£5,264 GBP
View
B+
Retailer 3
-
$9,856 AUD
$6,923 USD
View
B+
Retailer 4
-
$9,858 AUD
$6,925 USD
View
B
Retailer 5
-
$10,327 AUD
£5,712 GBP
View
B
Retailer 6
-
$11,350 AUD
$7,973 USD
View
B
Retailer 7
-
$11,356 AUD
ZAR 128,873 ZAR
View
B
Retailer 8
-
$13,733 AUD
$9,647 USD
View
B
Retailer 9
-
$13,868 AUD
View
B
Retailer 10
-
$22,820 AUD
SGD 21,662 SGD
View
Most Expensive
B
Taylor and Hart
B5EBCGX · Oct 31
$26,318 AUD
$18,487 USD
View
10 more retailers have this diamond
Prices start from $8,399 AUDSave up to $17,919 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.

B+
10.05ct Cushion
$8,399 AUD