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Cushion|Lab Grown|IGI

1.55ct F VS1 Cushion Lab Grown Diamond

EX • F/VS1 • IGI LG771663230

Shape and cutting style on the report: Square cushion modified brilliant

Certificate IGI LG771663230

Diamond specifications and retailer prices

From $270 USD
As of October 29, 2026
Save $928 USD (77%) vs most expensive(unlock to see where)
15 retailers carry this diamond
Most expensive: $1,198 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 F colour (colourless) and VS1 clarity (very-slightly-included), with a top-tier cut grade and certified by IGI LG771663230 or 771663230. Listed at 15 retailers as of October 29, 2026, with prices from $270 to $1,198, a $928 spread on the same certified stone. MOH London lists it at $1,198. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.55
Carat
F
Color
VS1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle36.3°
Pavilion angle41.2°
OriginLab Grown
Grading LabIGI
CertificateIGI LG771663230
Dimensions6.64 × 6.57 × 4.46 mm
L/W Ratio1.01
Girdle conditionFaceted
Culet sizePointed
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
6.64 mm6.57 mm1.55 ctF / VS1
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG771663230
Side View
Table 64.0%Crown 36.3°Girdle: MED-STKPavilion 41.2°Culet: NoneDepth 67.9%

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 29
Current: $1,198 USD|Low: $270 USD|High: $1,232 USD|Avg: $679 USD|-2.1%
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
Retailer 15
November 1, 2026
Retailer 15$270 USD
Retailer 7$299 USD
Retailer 8$349 USD
Retailer 10$496 USD
Retailer 14$504 USD
Retailer 2$516 USD
Retailer 3$541 USD
Retailer 9$566 USD
Retailer 4$626 USD
Retailer 13$696 USD
Retailer 12$752 USD
Retailer 5$916 USD
Retailer 6$1,012 USD
Retailer 11$1,082 USD
MOH London$1,198 USD

32 data points across 15 retailers

15 retailers$270 USD to $1,198 USD

A
Cheapest Retailer
-
$270 USD
Final sale: no returns
Retailer 2
-
$299 USD
View
Price last confirmed 21 days ago
A
Retailer 3
-
$349 USD
£275 GBP
View
A
Retailer 4
-
$496 USD
€472 EUR
View
A
Retailer 5
-
$504 USD
View
A
Retailer 6
-
$516 USD
ZAR 8,334 ZAR
View
A
Retailer 7
-
$541 USD
View
A
Retailer 8
-
$566 USD
£446 GBP
View
A
Retailer 9
-
$626 USD
View
B+
Retailer 10
-
$696 USD
A$1,071 AUD
View
B+
Retailer 11
-
$752 USD
View
B+
Retailer 12
-
$916 USD
View
B+
Retailer 13
-
$1,012 USD
View
B
Retailer 14
-
$1,082 USD
View
Most Expensive
B
MOH London
LG771663230 · Nov 1
$1,198 USD
£943 GBP
View
14 more retailers have this diamond
Prices start from $270 USDSave up to $928 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
$270 USD