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Radiant|Lab Grown|IGI

1.03ct G SI1 Radiant Lab Grown Diamond

VG • G/SI1 • IGI LG803628046

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

Certificate IGI LG803628046

Diamond specifications and retailer prices

From $145 USD
As of November 6, 2026
Save $692 USD (83%) vs most expensive(unlock to see where)
16 retailers carry this diamond
Most expensive: $837 USD at MOH London · As of November 4, 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 G colour (near-colourless) and SI1 clarity (slightly-included), with a very-good cut grade and certified by IGI LG803628046 or 803628046. Listed at 16 retailers as of November 4, 2026, with prices from $145 to $837, a $692 spread on the same certified stone. MOH London lists it at $837. Cut grade matters more than carat or clarity for visible brilliance. If you can shift budget toward an Excellent or Ideal cut, do it before chasing higher colour or clarity.

The 4Cs

1.03
Carat
G
Color
SI1
Clarity
Very Good
Cut

Specifications

CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle40.3°
Pavilion angle38.5°
OriginLab Grown
Grading LabIGI
CertificateIGI LG803628046
Dimensions7.06 × 5.08 × 3.49 mm
L/W Ratio1.39
Culet sizePointed
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
7.06 mm5.08 mm1.03 ctG / SI1
OriginLab Grown
CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG803628046
Side View
Table 69.0%Crown 40.3°Girdle: Slightly ThickPavilion 38.5°Culet: NoneDepth 68.7%

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: Nov 6
Current: $837 USD|Low: $139 USD|High: $848 USD|Avg: $382 USD|-0.3%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
November 6, 2026
Retailer 11$145 USD
Retailer 7$161 USD
Retailer 3$179 USD
Retailer 12$179 USD
Retailer 5$306 USD
Retailer 2$338 USD
Retailer 8$340 USD
Retailer 6$400 USD
Retailer 4$500 USD
Retailer 10$577 USD
Retailer 9$609 USD
MOH London$837 USD

45 data points across 12 retailers

16 retailers$145 USD to $837 USD

A
Cheapest Retailer
-
$145 USD
A
Retailer 2
-
$161 USD
View
Final sale: no returns
A
Retailer 3
-
$168 USD
View
Retailer 4
-
$177 USD
View
Price last confirmed 43 days ago
Retailer 5
-
$179 USD
View
Price last confirmed 13 days ago
A
Retailer 6
-
$179 USD
View
B+
Retailer 7
-
$296 USD
View
A
Retailer 8
-
$306 USD
View
B+
Retailer 9
-
$338 USD
View
B+
Retailer 10
-
$340 USD
View
B+
Retailer 11
-
$400 USD
View
B
Retailer 12
-
$500 USD
View
B
Retailer 13
-
$577 USD
View
B
Retailer 14
-
$609 USD
View
B
Retailer 15
-
$632 USD
View
Most Expensive
B
MOH London
LG803628046 · Nov 4
$837 USD
£659 GBP
View
15 more retailers have this diamond
Prices start from $145 USDSave up to $692 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
$145 USD