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Cushion|Lab Grown|IGI

1.55ct G VS1 Cushion Lab Grown Diamond

ID • G/VS1 • IGI LG520211710

Shape and cutting style on the report: Cushion brilliant

Certificate IGI LG520211710

Diamond specifications and retailer prices

From $245 USD
As of November 4, 2026
Save $1,055 USD (81%) vs most expensive(unlock to see where)
15 retailers carry this diamond
Most expensive: $1,300 USD at Brilliant Earth · As of November 4, 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 G colour (near-colourless) and VS1 clarity (very-slightly-included), with a top-tier cut grade and certified by IGI LG520211710 or 520211710. Listed at 15 retailers as of November 4, 2026, with prices from $245 to $1,300, a $1,055 spread on the same certified stone. Brilliant Earth lists it at $1,300. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.55
Carat
G
Color
VS1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle33.2°
Pavilion angle30.6°
OriginLab Grown
Grading LabIGI
CertificateIGI LG520211710
Dimensions7.71 × 6.23 × 3.88 mm
L/W Ratio1.24
Girdle conditionFaceted
Culet sizePointed
Cert comments
Faint Blue 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
7.71 mm6.23 mm1.55 ctG / VS1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG520211710
Side View
Table 61.0%Crown 33.2°Girdle: MED-THKPavilion 30.6°Culet: NoneDepth 62.3%

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: Nov 4
Current: $1,300 USD|Low: $368 USD|High: $1,490 USD|Avg: $695 USD|-10.3%
Brilliant Earth
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
November 4, 2026
Retailer 8$368 USD
Retailer 3$441 USD
Retailer 5$470 USD
Retailer 2$501 USD
Retailer 10$603 USD
Retailer 4$637 USD
Retailer 7$669 USD
Retailer 9$920 USD
Retailer 6$1,092 USD
Brilliant Earth$1,300 USD

44 data points across 10 retailers

15 retailers$245 USD to $1,300 USD

A
Cheapest Retailer
-
$245 USD
Final sale: no returns
B+
Retailer 2
-
$368 USD
View
A
Retailer 3
-
$441 USD
View
A
Retailer 4
-
$470 USD
View
A
Retailer 5
-
$501 USD
View
A
Retailer 6
-
$502 USD
View
A
Retailer 7
-
$559 USD
View
A
Retailer 8
-
$603 USD
View
A
Retailer 9
-
$637 USD
View
A
Retailer 10
-
$669 USD
View
B
Retailer 11
-
$920 USD
View
B
Retailer 12
-
$929 USD
View
B+
Retailer 13
-
$1,092 USD
View
B
Retailer 14
-
$1,257 USD
View
Most Expensive
B
Brilliant Earth
10788322A · Nov 4
$1,300 USD
View
14 more retailers have this diamond
Prices start from $245 USDSave up to $1,055 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
$245 USD