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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 $1,284 NZD
As of November 4, 2026
Save $1,453 NZD (53%) vs most expensive(unlock to see where)
12 retailers carry this diamond
Most expensive: $4,636 NZD at Flawless Fine Jewelry · As of November 4, 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 November 2, 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: Nov 4
Current: $4,636 NZD|Low: $1,233 NZD|High: $5,929 NZD|Avg: $2,619 NZD
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
November 5, 2026
Retailer 9$1,284 NZD
Retailer 10$1,352 NZD
Retailer 14$1,398 NZD
Retailer 3$1,491 NZD
Retailer 11$1,491 NZD
Retailer 6$1,804 NZD
Retailer 4$1,806 NZD
Retailer 5$2,341 NZD
Retailer 13$2,418 NZD
Retailer 7$2,738 NZD
Retailer 8$3,672 NZD
Retailer 12$4,191 NZD
Flawless Fine Jewelry$4,636 NZD
Retailer 2$5,837 NZD

23 data points across 14 retailers

12 retailers$1,284 NZD to $2,738 NZD

B+
Cheapest Retailer
-
$1,284 NZD
B
Retailer 2
-
$1,352 NZD
View
B
Retailer 3
-
$1,398 NZD
View
Retailer 4
-
$1,491 NZD
View
Price last confirmed 19 days ago
B
Retailer 5
-
$1,491 NZD
View
B
Retailer 6
-
$1,806 NZD
View
B
Retailer 7
-
$2,418 NZD
View
B
Retailer 8
-
$2,738 NZD
View
Retailer 9
-
$3,672 NZD
View
Price under review
Retailer 10
-
$4,191 NZD
View
Price under review
Most Expensive
Flawless Fine Jewelry
77780620A · Nov 4
$4,636 NZD
£2,052 GBP
View
Price under review
10 more retailers have this diamond
Prices start from $1,284 NZDSave up to $1,453 NZD

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
$1,284 NZD