Radiant|Lab Grown|IGI

1.55ct H VS1 Radiant Lab Grown Diamond

ID • H/VS1 • IGI LG620421277

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

Certificate IGI LG620421277

Diamond specifications and retailer prices

From $211 USD
As of October 27, 2026
Save $838 USD (80%) vs most expensive(unlock to see where)
16 retailers carry this diamond
Most expensive: $1,049 USD at MOH London · As of November 1, 2026
View at MOH London

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 H colour (near-colourless) and VS1 clarity (very-slightly-included), with a top-tier cut grade and certified by IGI LG620421277 or 620421277. Listed at 16 retailers as of October 27, 2026, with prices from $211 to $1,049, a $838 spread on the same certified stone. MOH London lists it at $1,049. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.55
Carat
H
Color
VS1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle40.5°
Pavilion angle34.9°
OriginLab Grown
Grading LabIGI
CertificateIGI LG620421277
Dimensions8.29 × 5.80 × 3.81 mm
L/W Ratio1.43
Culet sizePointed
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process and may include post-growth treatment Type IIa
Top View
8.29 mm5.80 mm1.55 ctH / VS1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG620421277
Side View
Table 63.0%Crown 40.5°Girdle: MediumPavilion 34.9°Culet: NoneDepth 65.7%

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 27
Current: $1,049 USD|Low: $210 USD|High: $1,099 USD|Avg: $555 USD|-3.4%
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
Retailer 16
November 2, 2026
Retailer 16$211 USD
Retailer 10$236 USD
Retailer 13$245 USD
Retailer 6$271 USD
Retailer 8$271 USD
Retailer 12$352 USD
Retailer 14$450 USD
Retailer 2$476 USD
Retailer 15$515 USD
Retailer 11$518 USD
Retailer 4$611 USD
Retailer 9$677 USD
Retailer 7$871 USD
Retailer 3$894 USD
Retailer 5$1,000 USD
MOH London$1,049 USD

27 data points across 16 retailers

16 retailers$211 USD to $1,049 USD

A
Cheapest Retailer
-
$211 USD
A
Retailer 2
-
$236 USD
View
Final sale: no returns
A
Retailer 3
-
$245 USD
View
Retailer 4
-
$271 USD
View
Price last confirmed 8 days ago
Retailer 5
-
$271 USD
View
Price last confirmed 8 days ago
B+
Retailer 6
-
$352 USD
View
A
Retailer 7
-
$450 USD
ZAR 7,263 ZAR
View
A
Retailer 8
-
$476 USD
€453 EUR
View
A
Retailer 9
-
$515 USD
View
A
Retailer 10
-
$518 USD
View
A
Retailer 11
-
$611 USD
A$940 AUD
View
A
Retailer 12
-
$677 USD
View
Retailer 13
-
$871 USD
View
Price last confirmed 8 days ago
B+
Retailer 14
-
$894 USD
View
B+
Retailer 15
-
$1,000 USD
View
Most Expensive
B+
MOH London
LG620421277 · Nov 1
$1,049 USD
£826 GBP
View
15 more retailers have this diamond
Prices start from $211 USDSave up to $838 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
$211 USD