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Cushion|Lab Grown|IGI

1.55ct D FL Cushion Lab Grown Diamond

ID • D/FL • IGI LG778666726

Shape and cutting style on the report: Cushion modified brilliant

Certificate IGI LG778666726

Diamond specifications and retailer prices

From $6,663 CAD
$4,770 USD
As of October 30, 2026
Save $3,691 CAD (36%) vs most expensive(unlock to see where)
13 retailers carry this diamond
Most expensive: $14,796 CAD at MOH London · As of October 29, 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 LG778666726 or 778666726. Listed at 13 retailers as of October 26, 2026, with a 55% spread between the cheapest and most expensive listing. That is exactly the kind of price-discovery gap Carat Hunter was built to surface. 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
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle34.9°
Pavilion angle30.8°
OriginLab Grown
Grading LabIGI
CertificateIGI LG778666726
Dimensions8.42 × 5.54 × 3.87 mm
L/W Ratio1.52
Girdle conditionFaceted
Culet sizePointed
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
8.42 mm5.54 mm1.55 ctD / FL
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG778666726
Side View
Table 62.0%Crown 34.9°Girdle: STK-VTKPavilion 30.8°Culet: NoneDepth 69.9%

Caratlytics Score

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

Price History

Last verified: Oct 30
Current: $14,796 CAD|Low: $5,357 CAD|High: $26,975 CAD|Avg: $13,098 CAD
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
October 30, 2026
Retailer 9$5,357 CAD
Retailer 10$6,663 CAD
Retailer 13$6,863 CAD
Retailer 2$8,059 CAD
Retailer 6$9,215 CAD
Retailer 12$10,006 CAD
Retailer 8$10,354 CAD
Retailer 7$13,064 CAD
Retailer 3$13,297 CAD
MOH London$14,796 CAD
Retailer 11$20,713 CAD
Retailer 5$24,407 CAD
Retailer 4$25,351 CAD

19 data points across 13 retailers

13 retailers$6,663 CAD to $10,354 CAD

Retailer 1
-
$5,357 CAD
$3,835 USD
Price last confirmed 9 days ago
B
Retailer 2
-
$6,663 CAD
$4,770 USD
View
B
Retailer 3
-
$6,863 CAD
$4,913 USD
View
Final sale: no returns
B
Retailer 4
-
$8,059 CAD
£4,542 GBP
View
B
Retailer 5
-
$9,215 CAD
£5,194 GBP
View
B
Retailer 6
-
$10,006 CAD
£5,640 GBP
View
B
Retailer 7
-
$10,354 CAD
$7,412 USD
View
Retailer 8
-
$13,064 CAD
ZAR 151,090 ZAR
View
Price under review
Retailer 9
-
$13,297 CAD
$9,519 USD
View
Price under review
Most Expensive
MOH London
LG778666726 · Oct 29
$14,796 CAD
£8,340 GBP
View
Price under review
9 more retailers have this diamond
Prices start from $6,663 CADSave up to $3,691 CAD

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
1.55ct Cushion
$6,663 CAD