Radiant|Lab Grown|IGI

1.03ct I VS1 Radiant Lab Grown Diamond

EX • I/VS1 • IGI LG589310631

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

Certificate IGI LG589310631

Diamond specifications and retailer prices

From $270 USD
As of October 28, 2026
Save $663 USD (71%) vs most expensive(unlock to see where)
6 retailers carry this diamond
Most expensive: $933 USD at MOH London · As of October 29, 2026
View at MOH London

About this 1.03ct lab-grown radiant diamond

This 1.03ct lab-grown radiant sits in the classic one-carat band, graded I colour (near-colourless) and VS1 clarity (very-slightly-included), with a top-tier cut grade and certified by IGI LG589310631 or 589310631. Listed at 6 retailers as of October 28, 2026, with prices from $270 to $933, a $663 spread on the same certified stone. MOH London lists it at $933. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.03
Carat
I
Color
VS1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle37.3°
Pavilion angle31.6°
OriginLab Grown
Grading LabIGI
CertificateIGI LG589310631
Dimensions7.57 × 5.00 × 3.15 mm
L/W Ratio1.51
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
7.57 mm5.00 mm1.03 ctI / VS1
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG589310631
Side View
Table 67.0%Crown 37.3°Girdle: Slightly ThickPavilion 31.6°Culet: NoneDepth 63.0%

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 28
Current: $933 USD|Low: $270 USD|High: $940 USD|Avg: $505 USD|-0.7%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
October 29, 2026
Retailer 3$270 USD
Retailer 5$301 USD
Retailer 2$356 USD
Retailer 4$517 USD
Retailer 6$694 USD
MOH London$933 USD

11 data points across 6 retailers

6 retailers$270 USD to $933 USD

B+
Cheapest Retailer
-
$270 USD
A
Retailer 2
-
$301 USD
View
A
Retailer 3
-
$356 USD
€339 EUR
View
B+
Retailer 4
-
$517 USD
View
B
Retailer 5
-
$694 USD
View
Most Expensive
B
MOH London
LG589310631 · Oct 29
$933 USD
£735 GBP
View
5 more retailers have this diamond
Prices start from $270 USDSave up to $663 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
1.03ct Radiant
$270 USD