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Radiant|Lab Grown|IGI

1.01ct F SI1 Radiant Lab Grown Diamond

ID • F/SI1 • IGI LG512221595

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

Certificate IGI LG512221595

Diamond specifications and retailer prices

From $1,151 NZD
As of November 6, 2026
Save $1,028 NZD (47%) vs most expensive(unlock to see where)
13 retailers carry this diamond
Most expensive: $3,752 NZD at NZ Jewellers · As of November 6, 2026
View at NZ Jewellers

About this 1.01ct lab-grown radiant diamond

This 1.01ct lab-grown radiant sits in the classic one-carat band, graded F colour (colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by IGI LG512221595 or 512221595. Listed at 13 retailers as of November 6, 2026, with a 89% spread between the cheapest and most expensive listing. That is exactly the kind of price-discovery gap Carat Hunter was built to surface. SI-grade stones are eye-clean roughly 60 to 70% of the time at this carat range. Check the inclusion plot on the cert and ask the retailer for high-resolution video before buying.

The 4Cs

1.01
Carat
F
Colour
SI1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle34.4°
Pavilion angle31°
OriginLab Grown
Grading LabIGI
CertificateIGI LG512221595
Dimensions6.60 × 5.29 × 3.31 mm
L/W Ratio1.25
Culet sizePointed
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
6.60 mm5.29 mm1.01 ctF / SI1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG512221595
Side View
Table 69.0%Crown 34.4°Girdle: MediumPavilion 31°Culet: NoneDepth 62.6%

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 6
Current: $3,752 NZD|Low: $1,104 NZD|High: $5,690 NZD|Avg: $2,261 NZD
NZ Jewellers
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
November 6, 2026
Retailer 7$1,151 NZD
Retailer 11$1,252 NZD
Retailer 3$1,288 NZD
Retailer 9$1,335 NZD
Retailer 8$1,605 NZD
Retailer 5$1,651 NZD
Retailer 2$2,111 NZD
Retailer 10$2,179 NZD
Retailer 6$3,409 NZD
NZ Jewellers$3,752 NZD
Retailer 4$5,605 NZD

43 data points across 11 retailers

13 retailers$1,151 NZD to $2,179 NZD

B+
Cheapest Retailer
-
$1,151 NZD
B
Retailer 2
-
$1,252 NZD
View
B
Retailer 3
-
$1,288 NZD
View
Final sale: no returns
Retailer 4
-
$1,335 NZD
View
Price last confirmed 22 days ago
B
Retailer 5
-
$1,335 NZD
View
B
Retailer 6
-
$1,605 NZD
View
B
Retailer 7
-
$1,651 NZD
View
B
Retailer 8
-
$2,111 NZD
View
B
Retailer 9
-
$2,179 NZD
View
Retailer 10
-
$3,409 NZD
View
Price under review
Most Expensive
NZ Jewellers
d55dcdc9-aa00-4087-b55d-e7cf0ecb19d7 · Nov 6
$3,752 NZD
$2,080 USD
View
Price under review
10 more retailers have this diamond
Prices start from $1,151 NZDSave up to $1,028 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+
1.01ct Radiant
$1,151 NZD