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Cushion|Lab Grown|IGI

1.76ct D FL Cushion Lab Grown Diamond

ID • D/FL • IGI LG840632406

Shape and cutting style on the report: Cushion modified brilliant

Certificate IGI LG840632406

Diamond specifications and retailer prices

From $688 USD
As of October 30, 2026
Save $2,972 USD (81%) vs most expensive(unlock to see where)
18 retailers carry this diamond
Most expensive: $3,660 USD at Brilliant Earth · As of October 30, 2026
View at Brilliant Earth

About this 1.76ct lab-grown cushion diamond

This 1.76ct lab-grown cushion sits in the one-and-a-half to two carat band, graded D colour (colourless) and FL clarity (flawless or internally-flawless), with a top-tier cut grade and certified by IGI LG840632406 or 840632406. Listed at 18 retailers as of October 30, 2026, with prices from $688 to $3,660, a $2,972 spread on the same certified stone. Brilliant Earth lists it at $3,660. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.76
Carat
D
Color
FL
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle34.9°
Pavilion angle39°
OriginLab Grown
Grading LabIGI
CertificateIGI LG840632406
Dimensions8.61 × 5.95 × 4.15 mm
L/W Ratio1.45
Girdle conditionFaceted
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
8.61 mm5.95 mm1.76 ctD / FL
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG840632406
Side View
Table 59.0%Crown 34.9°Girdle: MED-THKPavilion 39°Culet: NoneDepth 69.7%

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: Oct 30
Current: $3,660 USD|Low: $688 USD|High: $4,430 USD|Avg: $2,019 USD|-17.4%
Brilliant Earth
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
Retailer 13
Retailer 14
Retailer 15
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Retailer 17
Retailer 18
October 31, 2026
Retailer 4$688 USD
Retailer 11$800 USD
Retailer 16$870 USD
Retailer 6$973 USD
Retailer 17$1,157 USD
Retailer 12$1,181 USD
Retailer 13$1,212 USD
Retailer 15$1,297 USD
Retailer 18$1,434 USD
Retailer 2$1,633 USD
Retailer 5$2,195 USD
Retailer 7$2,391 USD
Retailer 3$2,440 USD
Retailer 8$2,500 USD
Retailer 9$2,995 USD
Retailer 14$3,294 USD
Retailer 10$3,400 USD
Brilliant Earth$3,660 USD

18 data points across 18 retailers

18 retailers$688 USD to $3,660 USD

A
Cheapest Retailer
-
$688 USD
Final sale: no returns
A
Retailer 2
-
$800 USD
£630 GBP
View
A
Retailer 3
-
$870 USD
View
A
Retailer 4
-
$973 USD
View
A
Retailer 5
-
$1,157 USD
View
A
Retailer 6
-
$1,181 USD
£930 GBP
View
A
Retailer 7
-
$1,212 USD
€1,154 EUR
View
A
Retailer 8
-
$1,297 USD
ZAR 20,953 ZAR
View
A
Retailer 9
-
$1,434 USD
View
B+
Retailer 10
-
$1,633 USD
View
B+
Retailer 11
-
$2,195 USD
£1,728 GBP
View
B+
Retailer 12
-
$2,391 USD
View
B+
Retailer 13
-
$2,440 USD
View
B+
Retailer 14
-
$2,500 USD
SGD 3,379 SGD
View
Retailer 15
-
$2,995 USD
View
Price last confirmed 9 days ago
B
Retailer 16
-
$3,294 USD
£2,594 GBP
View
B
Retailer 17
-
$3,400 USD
View
Most Expensive
B
Brilliant Earth
21826846A · Oct 30
$3,660 USD
View
17 more retailers have this diamond
Prices start from $688 USDSave up to $2,972 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
1.76ct Cushion
$688 USD