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 $6,686 USD
£5,264 GBP
As of October 30, 2026
Save $11,801 USD (64%) vs most expensive(unlock to see where)
11 retailers carry this diamond
Most expensive: $18,487 USD at Taylor and Hart · As of October 30, 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 30, 2026, with prices from $6,686 to $18,487, a $11,801 spread on the same certified stone. Taylor and Hart lists it at $18,487. 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
Color
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
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See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Oct 30
Current: $6,686 USD|Low: $5,195 USD|High: $18,487 USD|Avg: $9,436 USD|+0.5%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Taylor and Hart
October 30, 2026
Retailer 5$5,900 USD
Retailer 1$6,686 USD
Retailer 2$6,923 USD
Retailer 6$6,925 USD
Retailer 10$7,254 USD
Retailer 8$7,973 USD
Retailer 3$7,977 USD
Retailer 7$9,647 USD
Retailer 4$9,758 USD
Retailer 9$16,030 USD
Taylor and Hart$18,487 USD

36 data points across 11 retailers

11 retailers$6,686 USD to $18,487 USD

Retailer 1
-
$5,900 USD
Price last confirmed 10 days ago
B+
Retailer 2
-
$6,686 USD
£5,264 GBP
View
B+
Retailer 3
-
$6,923 USD
View
B+
Retailer 4
-
$6,925 USD
View
B
Retailer 5
-
$7,254 USD
£5,712 GBP
View
B
Retailer 6
-
$7,973 USD
View
B
Retailer 7
-
$7,977 USD
ZAR 128,873 ZAR
View
B
Retailer 8
-
$9,647 USD
View
Retailer 9
-
$9,758 USD
A$15,013 AUD
View
Price last confirmed 8 days ago
B
Retailer 10
-
$16,030 USD
SGD 21,662 SGD
View
Most Expensive
B
Taylor and Hart
B5EBCGX · Oct 30
$18,487 USD
View
10 more retailers have this diamond
Prices start from $6,686 USDSave up to $11,801 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+
10.05ct Cushion
$6,686 USD