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Cushion|Lab Grown|IGI

1.77ct D FL Cushion Lab Grown Diamond

EX • D/FL • IGI LG816630872

Shape and cutting style on the report: Cushion modified brilliant

Certificate IGI LG816630872

Diamond specifications and retailer prices

From $823 USD
As of October 30, 2026
Save $2,549 USD (76%) vs most expensive(unlock to see where)
14 retailers carry this diamond
Most expensive: $3,372 USD at MOH London · As of October 29, 2026
View at MOH London

About this 1.77ct lab-grown cushion diamond

This 1.77ct 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 LG816630872 or 816630872. Listed at 14 retailers as of October 29, 2026, with prices from $823 to $3,372, a $2,549 spread on the same certified stone. MOH London lists it at $3,372. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.77
Carat
D
Color
FL
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle32.7°
Pavilion angle37.8°
OriginLab Grown
Grading LabIGI
CertificateIGI LG816630872
Dimensions9.24 × 6.16 × 4.04 mm
L/W Ratio1.50
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
9.24 mm6.16 mm1.77 ctD / FL
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG816630872
Side View
Table 60.0%Crown 32.7°Girdle: MED-STKPavilion 37.8°Culet: NoneDepth 65.6%

Caratlytics Score

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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: $3,372 USD|Low: $821 USD|High: $4,097 USD|Avg: $2,171 USD|-16.6%
MOH London
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
October 30, 2026
Retailer 14$823 USD
Retailer 3$854 USD
Retailer 8$1,055 USD
Retailer 13$1,178 USD
Retailer 7$1,303 USD
Retailer 2$1,371 USD
Retailer 11$1,384 USD
Retailer 10$1,492 USD
Retailer 4$2,652 USD
Retailer 5$2,886 USD
Retailer 12$2,905 USD
Retailer 6$2,944 USD
Retailer 9$3,010 USD
MOH London$3,372 USD

42 data points across 14 retailers

14 retailers$823 USD to $3,372 USD

A
Cheapest Retailer
-
$823 USD
Final sale: no returns
Retailer 2
-
$854 USD
View
Price last confirmed 13 days ago
A
Retailer 3
-
$1,055 USD
View
A
Retailer 4
-
$1,178 USD
View
A
Retailer 5
-
$1,303 USD
€1,241 EUR
View
A
Retailer 6
-
$1,371 USD
£1,079 GBP
View
A
Retailer 7
-
$1,384 USD
View
A
Retailer 8
-
$1,492 USD
View
B+
Retailer 9
-
$2,652 USD
£2,088 GBP
View
B+
Retailer 10
-
$2,886 USD
View
B
Retailer 11
-
$2,905 USD
View
B
Retailer 12
-
$2,944 USD
View
Retailer 13
-
$3,010 USD
View
Price last confirmed 9 days ago
Most Expensive
B
MOH London
LG816630872 · Oct 29
$3,372 USD
£2,655 GBP
View
13 more retailers have this diamond
Prices start from $823 USDSave up to $2,549 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
1.77ct Cushion
$823 USD