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 €223 EUR
$249 USD
As of October 30, 2026
Save €528 EUR (70%) vs most expensive(unlock to see where)
8 retailers carry this diamond
Most expensive: €871 EUR at MOH London · As of October 18, 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 8 retailers as of October 30, 2026, with a 237% spread between the cheapest and most expensive listing. That is exactly the kind of price-discovery gap Carat Hunter was built to surface. 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: Oct 30
Current: €871 EUR|Low: €223 EUR|High: €876 EUR|Avg: €488 EUR|+0.4%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
October 18, 2026
Retailer 6€223 EUR
Retailer 3€308 EUR
Retailer 2€354 EUR
Retailer 4€386 EUR
Retailer 7€529 EUR
Retailer 5€751 EUR
MOH London€871 EUR

10 data points across 7 retailers

8 retailers€223 EUR to €751 EUR

A
Cheapest Retailer
-
€223 EUR
$249 USD
B+
Retailer 2
-
€308 EUR
$344 USD
View
B+
Retailer 3
-
€354 EUR
$395 USD
View
B+
Retailer 4
-
€367 EUR
$410 USD
View
B+
Retailer 5
-
€386 EUR
$431 USD
View
B
Retailer 6
-
€606 EUR
£534 GBP
View
B
Retailer 7
-
€751 EUR
$839 USD
View
Most Expensive
MOH London
LG638428908 · Oct 18
€871 EUR
£766 GBP
View
Price last confirmed 13 days ago
7 more retailers have this diamond
Prices start from €223 EURSave up to €528 EUR

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
€223 EUR