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Radiant|Lab Grown|IGI

1.00ct H VS1 Radiant Lab Grown Diamond

GD • H/VS1 • IGI LG638428908

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

Certificate IGI LG638428908

Diamond specifications and retailer prices

From $319 SGD
As of November 3, 2026
Save $921 SGD (74%) vs most expensive(unlock to see where)
9 retailers carry this diamond
Most expensive: $1,240 SGD at MOH London · As of November 2, 2026
View at MOH London

About this 1ct lab-grown radiant diamond

This 1ct lab-grown radiant sits in the classic one-carat band, graded H colour (near-colourless) and VS1 clarity (very-slightly-included), with a standard cut grade and certified by IGI LG638428908 or 638428908. Listed at 9 retailers as of November 2, 2026, with prices from $319 to $1,240, a $921 spread on the same certified stone. MOH London lists it at $1,240. 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

1.00
Carat
H
Colour
VS1
Clarity
Good
Cut

Specifications

CutGood
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle46.6°
Pavilion angle33.3°
OriginLab Grown
Grading LabIGI
CertificateIGI LG638428908
Dimensions7.31 × 5.03 × 3.31 mm
L/W Ratio1.45
Culet sizePointed
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
7.31 mm5.03 mm1.00 ctH / VS1
OriginLab Grown
CutGood
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG638428908
Side View
Table 67.0%Crown 46.6°Girdle: MediumPavilion 33.3°Culet: NoneDepth 65.8%

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: Nov 3
Current: $1,240 SGD|Low: $319 SGD|High: $1,255 SGD|Avg: $699 SGD|-0.1%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
November 2, 2026
Retailer 6$319 SGD
Retailer 3$441 SGD
Retailer 2$506 SGD
Retailer 4$552 SGD
Retailer 7$756 SGD
Retailer 5$1,075 SGD
MOH London$1,240 SGD

11 data points across 7 retailers

9 retailers$319 SGD to $1,240 SGD

A
Cheapest Retailer
-
$319 SGD
B+
Retailer 2
-
$441 SGD
View
B+
Retailer 3
-
$506 SGD
View
B+
Retailer 4
-
$525 SGD
View
B+
Retailer 5
-
$552 SGD
View
B+
Retailer 6
-
$577 SGD
View
B
Retailer 7
-
$867 SGD
View
B
Retailer 8
-
$1,075 SGD
View
Most Expensive
B
MOH London
LG638428908 · Nov 2
$1,240 SGD
£762 GBP
View
8 more retailers have this diamond
Prices start from $319 SGDSave up to $921 SGD

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
1.00ct Radiant
$319 SGD