Radiant|Lab Grown|IGI

1.55ct D VS2 Radiant Lab Grown Diamond

ID • D/VS2 • IGI LG640455936

Shape and cutting style on the report: Cut cornered rectangular modified brilliant

Certificate IGI LG640455936

Diamond specifications and retailer prices

From $258 USD
As of October 25, 2026
Save $1,512 USD (85%) vs most expensive(unlock to see where)
17 retailers carry this diamond
Most expensive: $1,770 USD at Brilliant Earth · As of October 30, 2026
View at Brilliant Earth

About this 1.55ct lab-grown radiant diamond

This 1.55ct lab-grown radiant sits in the one-and-a-half to two carat band, graded D colour (colourless) and VS2 clarity (very-slightly-included), with a top-tier cut grade and certified by IGI LG640455936 or 640455936. Listed at 17 retailers as of October 25, 2026, with prices from $258 to $1,770, a $1,512 spread on the same certified stone. Brilliant Earth lists it at $1,770. 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
VS2
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle45°
Pavilion angle35.4°
OriginLab Grown
Grading LabIGI
CertificateIGI LG640455936
Dimensions8.43 × 5.64 × 3.85 mm
L/W Ratio1.49
Culet sizePointed
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
8.43 mm5.64 mm1.55 ctD / VS2
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG640455936
Side View
Table 65.0%Crown 45°Girdle: MediumPavilion 35.4°Culet: NoneDepth 68.3%

Caratlytics Score

How it works →
A
Excellent
Excellent quality and great value
Unlock full score analysis
See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Oct 25
Current: $1,770 USD|Low: $258 USD|High: $2,020 USD|Avg: $747 USD|-12.4%
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
October 31, 2026
Retailer 12$258 USD
Retailer 11$289 USD
Retailer 13$446 USD
Retailer 9$468 USD
Retailer 2$476 USD
Retailer 4$531 USD
Retailer 3$590 USD
Retailer 7$833 USD
Retailer 5$883 USD
Retailer 6$945 USD
Retailer 8$1,015 USD
Retailer 10$1,040 USD
Retailer 14$1,052 USD
Brilliant Earth$1,770 USD

38 data points across 14 retailers

17 retailers$258 USD to $1,770 USD

Retailer 1
-
$242 USD
Price last confirmed 33 days ago
Retailer 2
-
$255 USD
View
Price last confirmed 33 days ago
A
Retailer 3
-
$258 USD
View
Retailer 4
-
$258 USD
View
Price last confirmed 19 days ago
Retailer 5
-
$289 USD
£227 GBP
View
Price last confirmed 14 days ago
B+
Retailer 6
-
$446 USD
View
Retailer 7
-
$468 USD
€446 EUR
View
Price last confirmed 7 days ago
A
Retailer 8
-
$476 USD
£375 GBP
View
A
Retailer 9
-
$531 USD
View
A
Retailer 10
-
$590 USD
View
B
Retailer 11
-
$833 USD
View
Retailer 12
-
$883 USD
View
Price last confirmed 13 days ago
B+
Retailer 13
-
$938 USD
£738 GBP
View
B
Retailer 14
-
$1,015 USD
View
B
Retailer 15
-
$1,040 USD
£819 GBP
View
B
Retailer 16
-
$1,052 USD
View
Most Expensive
B
Brilliant Earth
10802865A · Oct 30
$1,770 USD
View
16 more retailers have this diamond
Prices start from $258 USDSave up to $1,512 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 Radiant
$258 USD