Radiant|Lab Grown|IGI

1.03ct D SI1 Radiant Lab Grown Diamond

EX • D/SI1 • IGI LG831674386

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

Certificate IGI LG831674386

Diamond specifications and retailer prices

From $137 USD
As of November 6, 2026
Save $666 USD (83%) vs most expensive(unlock to see where)
9 retailers carry this diamond
Most expensive: $803 USD at MOH London · As of November 1, 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 D colour (colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by IGI LG831674386 or 831674386. Listed at 9 retailers as of November 1, 2026, with prices from $137 to $803, a $666 spread on the same certified stone. MOH London lists it at $803. SI-grade stones are eye-clean roughly 60 to 70% of the time at this carat range. Check the inclusion plot on the cert and ask the retailer for high-resolution video before buying.

The 4Cs

1.03
Carat
D
Color
SI1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle44.2°
Pavilion angle34.5°
OriginLab Grown
Grading LabIGI
CertificateIGI LG831674386
Dimensions7.02 × 5.07 × 3.31 mm
L/W Ratio1.38
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
7.02 mm5.07 mm1.03 ctD / SI1
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG831674386
Side View
Table 67.0%Crown 44.2°Girdle: MediumPavilion 34.5°Culet: NoneDepth 65.3%

Caratlytics Score

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A
Excellent
Excellent quality and great value
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Price History

Last verified: Nov 6
Current: $803 USD|Low: $135 USD|High: $823 USD|Avg: $433 USD|-1.4%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
November 6, 2026
Retailer 3$137 USD
Retailer 6$159 USD
Retailer 2$202 USD
Retailer 7$304 USD
Retailer 8$493 USD
Retailer 4$546 USD
Retailer 5$576 USD
Retailer 9$586 USD
MOH London$803 USD

31 data points across 9 retailers

9 retailers$137 USD to $803 USD

A
Cheapest Retailer
-
$137 USD
A
Retailer 2
-
$159 USD
View
A
Retailer 3
-
$202 USD
View
A
Retailer 4
-
$304 USD
View
B+
Retailer 5
-
$493 USD
View
B
Retailer 6
-
$546 USD
View
B+
Retailer 7
-
$576 USD
View
Retailer 8
-
$586 USD
View
Price last confirmed 25 days ago
Most Expensive
B
MOH London
LG831674386 · Nov 1
$803 USD
£632 GBP
View
8 more retailers have this diamond
Prices start from $137 USDSave up to $666 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
$137 USD