Cushion|Lab Grown|IGI

8.06ct D SI1 Cushion Lab Grown Diamond

ID • D/SI1 • IGI LG480177518

Shape and cutting style on the report: Square cushion brilliant

Certificate IGI LG480177518

Diamond specifications and retailer prices

From $6,425 USD
As of October 31, 2026
Save $8,944 USD (58%) vs most expensive(unlock to see where)
13 retailers carry this diamond
Most expensive: $17,156 USD at MOH London · As of October 29, 2026
View at MOH London

About this 8.06ct lab-grown cushion diamond

This 8.06ct lab-grown cushion sits in the over five carat band, graded D colour (colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by IGI LG480177518 or 480177518. Listed at 13 retailers as of October 31, 2026, with a 139% spread between the cheapest and most expensive listing. That is exactly the kind of price-discovery gap Carat Hunter was built to surface. 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

8.06
Carat
D
Color
SI1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle36.9°
Pavilion angle38.6°
OriginLab Grown
Grading LabIGI
CertificateIGI LG480177518
Dimensions11.88 × 11.52 × 7.63 mm
L/W Ratio1.03
Girdle conditionFaceted
Culet sizePointed
Cert comments
As Grown - No indication of post-growth treatment This Laboratory Grown Diamond was created by High Pressure High Temperature (HPHT) growth process Type II
Top View
11.88 mm11.52 mm8.06 ctD / SI1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG480177518
Side View
Table 56.5%Crown 36.9°Girdle: MED-VTKPavilion 38.6°Culet: NoneDepth 66.2%

Caratlytics Score

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B
Good
Decent quality, room for better deals
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See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Oct 31
Current: $17,156 USD|Low: $6,425 USD|High: $34,275 USD|Avg: $13,229 USD|+0.5%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
November 1, 2026
Retailer 10$6,425 USD
Retailer 7$7,552 USD
Retailer 4$8,280 USD
Retailer 9$9,622 USD
Retailer 8$9,763 USD
Retailer 2$11,340 USD
Retailer 5$12,590 USD
Retailer 3$15,369 USD
MOH London$17,156 USD
Retailer 6$34,275 USD

41 data points across 10 retailers

13 retailers$6,425 USD to $15,369 USD

B
Cheapest Retailer
-
$6,425 USD
B
Retailer 2
-
$7,552 USD
View
B
Retailer 3
-
$8,280 USD
View
B
Retailer 4
-
$9,622 USD
View
B
Retailer 5
-
$9,763 USD
View
Final sale: no returns
B
Retailer 6
-
$10,061 USD
HK$78,600 HKD
View
B
Retailer 7
-
$11,340 USD
£8,929 GBP
View
B
Retailer 8
-
$12,590 USD
View
B
Retailer 9
-
$15,369 USD
€14,637 EUR
View
Most Expensive
MOH London
LG480177518 · Oct 29
$17,156 USD
£13,509 GBP
View
Price under review
9 more retailers have this diamond
Prices start from $6,425 USDSave up to $8,944 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
8.06ct Cushion
$6,425 USD