Radiant|Lab Grown|IGI

1.00ct H VS1 Radiant Lab Grown Diamond

ID • H/VS1 • IGI LG512227222

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

Certificate IGI LG512227222

Diamond specifications and retailer prices

From €646 EUR
$722 USD
As of October 30, 2026
Save €732 EUR (53%) vs most expensive(unlock to see where)
12 retailers carry this diamond
Most expensive: €2,333 EUR at Flawless Fine Jewelry · As of October 31, 2026
View at Flawless Fine Jewelry

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 top-tier cut grade and certified by IGI LG512227222 or 512227222. Listed at 12 retailers as of October 29, 2026, with a 113% spread between the cheapest and most expensive listing. That is exactly the kind of price-discovery gap Carat Hunter was built to surface. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.00
Carat
H
Colour
VS1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryVery Good
FluorescenceNone
Crown angle39.7°
Pavilion angle31.9°
OriginLab Grown
Grading LabIGI
CertificateIGI LG512227222
Dimensions6.55 × 4.96 × 3.48 mm
L/W Ratio1.32
Culet sizeLong
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process and may include post-growth treatment Type IIa
Top View
6.55 mm4.96 mm1.00 ctH / VS1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryVery Good
FluorescenceNone
CertificateIGI LG512227222
Side View
Table 66.0%Crown 39.7°Girdle: THK-VTKPavilion 31.9°Culet: LNGDepth 70.2%

Caratlytics Score

How it works →
B+
Very Good
Strong quality and value balance
Unlock full score analysis
See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Oct 30
Current: €2,333 EUR|Low: €620 EUR|High: €2,984 EUR|Avg: €1,317 EUR
Flawless Fine Jewelry
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
Retailer 13
Retailer 14
October 29, 2026
Retailer 9€646 EUR
Retailer 10€680 EUR
Retailer 14€704 EUR
Retailer 3€750 EUR
Retailer 11€750 EUR
Retailer 6€908 EUR
Retailer 4€909 EUR
Retailer 5€1,178 EUR
Retailer 13€1,216 EUR
Retailer 2€1,379 EUR
Retailer 8€1,847 EUR
Retailer 12€2,109 EUR
Flawless Fine Jewelry€2,333 EUR
Retailer 7€2,949 EUR

22 data points across 14 retailers

12 retailers€646 EUR to €1,379 EUR

B+
Cheapest Retailer
-
€646 EUR
$722 USD
B
Retailer 2
-
€680 EUR
$760 USD
View
B
Retailer 3
-
€704 EUR
$786 USD
View
Retailer 4
-
€750 EUR
$838 USD
View
Price last confirmed 14 days ago
B
Retailer 5
-
€750 EUR
$838 USD
View
B
Retailer 6
-
€909 EUR
$1,015 USD
View
B
Retailer 7
-
€1,216 EUR
$1,359 USD
View
B
Retailer 8
-
€1,379 EUR
ZAR 24,881 ZAR
View
Retailer 9
-
€1,847 EUR
$2,064 USD
View
Price under review
Retailer 10
-
€2,109 EUR
$2,356 USD
View
Price under review
Most Expensive
Flawless Fine Jewelry
77780620A · Oct 31
€2,333 EUR
£2,052 GBP
View
Price under review
10 more retailers have this diamond
Prices start from €646 EURSave up to €732 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.

B+
1.00ct Radiant
€646 EUR