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Cushion|Lab Grown|IGI

1.55ct F VS1 Cushion Lab Grown Diamond

ID • F/VS1 • IGI LG681547897

Shape and cutting style on the report: Square cushion brilliant

Certificate IGI LG681547897

Diamond specifications and retailer prices

From $266 USD
As of November 4, 2026
Save $1,624 USD (86%) vs most expensive(unlock to see where)
14 retailers carry this diamond
Most expensive: $1,890 USD at Brilliant Earth · As of November 5, 2026
View at Brilliant Earth

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 LG681547897 or 681547897. Listed at 14 retailers as of November 4, 2026, with prices from $266 to $1,890, a $1,624 spread on the same certified stone. Brilliant Earth lists it at $1,890. 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
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle34.8°
Pavilion angle38.5°
OriginLab Grown
Grading LabIGI
CertificateIGI LG681547897
Dimensions6.77 × 6.63 × 4.37 mm
L/W Ratio1.02
Girdle conditionFaceted
Culet sizePointed
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
6.77 mm6.63 mm1.55 ctF / VS1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG681547897
Side View
Table 62.0%Crown 34.8°Girdle: MED-STKPavilion 38.5°Culet: NoneDepth 65.9%

Caratlytics Score

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A
Excellent
Excellent quality and great value
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Price History

Last verified: Nov 4
Current: $1,890 USD|Low: $216 USD|High: $1,990 USD|Avg: $718 USD|-5.0%
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
November 5, 2026
Retailer 3$266 USD
Retailer 4$295 USD
Retailer 9$383 USD
Retailer 15$448 USD
Retailer 8$490 USD
Retailer 14$509 USD
Retailer 7$525 USD
Retailer 10$546 USD
Retailer 2$623 USD
Retailer 6$623 USD
Retailer 12$689 USD
Retailer 5$1,010 USD
Retailer 13$1,182 USD
Retailer 11$1,264 USD
Brilliant Earth$1,890 USD

37 data points across 15 retailers

14 retailers$266 USD to $1,890 USD

A
Cheapest Retailer
-
$266 USD
Final sale: no returns
Retailer 2
-
$295 USD
View
Price last confirmed 20 days ago
A
Retailer 3
-
$383 USD
View
A
Retailer 4
-
$448 USD
View
A
Retailer 5
-
$490 USD
View
A
Retailer 6
-
$509 USD
View
A
Retailer 7
-
$546 USD
View
A
Retailer 8
-
$623 USD
View
A
Retailer 9
-
$623 USD
View
A
Retailer 10
-
$689 USD
View
B+
Retailer 11
-
$1,010 USD
View
B
Retailer 12
-
$1,182 USD
View
B
Retailer 13
-
$1,264 USD
View
Most Expensive
B
Brilliant Earth
13120819A · Nov 5
$1,890 USD
View
13 more retailers have this diamond
Prices start from $266 USDSave up to $1,624 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
$266 USD