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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 $355 AUD
$249 USD
As of November 1, 2026
Save $1,026 AUD (74%) vs most expensive(unlock to see where)
9 retailers carry this diamond
Most expensive: $1,381 AUD 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 1, 2026, with prices from $355 to $1,381, a $1,026 spread on the same certified stone. MOH London lists it at $1,381. 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 1
Current: $1,381 AUD|Low: $355 AUD|High: $1,397 AUD|Avg: $779 AUD|-0.1%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
November 2, 2026
Retailer 6$355 AUD
Retailer 3$491 AUD
Retailer 2$564 AUD
Retailer 4$615 AUD
Retailer 7$843 AUD
Retailer 5$1,198 AUD
MOH London$1,381 AUD

11 data points across 7 retailers

9 retailers$355 AUD to $1,381 AUD

A
Cheapest Retailer
-
$355 AUD
$249 USD
B+
Retailer 2
-
$491 AUD
$344 USD
View
B+
Retailer 3
-
$564 AUD
$395 USD
View
B+
Retailer 4
-
$585 AUD
$410 USD
View
B+
Retailer 5
-
$615 AUD
$431 USD
View
B+
Retailer 6
-
$642 AUD
$450 USD
View
B
Retailer 7
-
$967 AUD
£534 GBP
View
B
Retailer 8
-
$1,198 AUD
$839 USD
View
Most Expensive
B
MOH London
LG638428908 · Nov 2
$1,381 AUD
£762 GBP
View
8 more retailers have this diamond
Prices start from $355 AUDSave up to $1,026 AUD

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
$355 AUD