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Cushion|Lab Grown|IGI

1.55ct D FL Cushion Lab Grown Diamond

EX • D/FL • IGI LG784645841

Shape and cutting style on the report: Antique cushion cut

Certificate IGI LG784645841

Diamond specifications and retailer prices

From $579 USD
As of October 29, 2026
Save $2,541 USD (81%) vs most expensive(unlock to see where)
9 retailers carry this diamond
Most expensive: $3,120 USD at MOH London · As of November 1, 2026
View at MOH London

About this 1.55ct lab-grown cushion diamond

This 1.55ct 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 LG784645841 or 784645841. Listed at 9 retailers as of October 29, 2026, with prices from $579 to $3,120, a $2,541 spread on the same certified stone. MOH London lists it at $3,120. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.55
Carat
D
Color
FL
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle35.5°
Pavilion angle39.1°
OriginLab Grown
Grading LabIGI
CertificateIGI LG784645841
Dimensions8.41 × 5.95 × 3.76 mm
L/W Ratio1.41
Girdle conditionFaceted
Culet sizeLarge
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
8.41 mm5.95 mm1.55 ctD / FL
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG784645841
Side View
Table 58.0%Crown 35.5°Girdle: STK-THKPavilion 39.1°Culet: LargeDepth 63.2%

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 29
Current: $3,120 USD|Low: $579 USD|High: $6,537 USD|Avg: $2,924 USD|-31.9%
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
November 1, 2026
Retailer 12$579 USD
Retailer 10$648 USD
Retailer 14$931 USD
Retailer 11$1,104 USD
Retailer 13$1,180 USD
Retailer 2$1,269 USD
Retailer 9$1,780 USD
Retailer 8$1,955 USD
Retailer 7$2,083 USD
Retailer 5$2,810 USD
MOH London$3,120 USD
Retailer 3$5,070 USD
Retailer 6$6,316 USD
Retailer 4$6,537 USD

27 data points across 14 retailers

9 retailers$579 USD to $3,120 USD

A
Cheapest Retailer
-
$579 USD
A
Retailer 2
-
$648 USD
View
A
Retailer 3
-
$1,104 USD
View
A
Retailer 4
-
$1,180 USD
View
Final sale: no returns
A
Retailer 5
-
$1,269 USD
€1,209 EUR
View
B+
Retailer 6
-
$1,780 USD
View
B+
Retailer 7
-
$1,955 USD
View
B+
Retailer 8
-
$2,083 USD
View
Most Expensive
B
MOH London
LG784645841 · Nov 1
$3,120 USD
£2,457 GBP
View
8 more retailers have this diamond
Prices start from $579 USDSave up to $2,541 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
1.55ct Cushion
$579 USD