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Radiant|Lab Grown|IGI

1.82ct G SI1 Radiant Lab Grown Diamond

ID • G/SI1 • IGI LG537225687

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

Certificate IGI LG537225687

Diamond specifications and retailer prices

From $2,062 NZD
$1,160 USD
As of October 31, 2026
Save $4,418 NZD (68%) vs most expensive(unlock to see where)
11 retailers carry this diamond
Most expensive: $7,219 NZD at NZ Jewellers · As of November 1, 2026
View at NZ Jewellers

About this 1.82ct lab-grown radiant diamond

This 1.82ct lab-grown radiant sits in the one-and-a-half to two carat band, graded G colour (near-colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by IGI LG537225687 or 537225687. Listed at 11 retailers as of October 31, 2026, with a 214% 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

1.82
Carat
G
Colour
SI1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle40°
Pavilion angle35°
OriginLab Grown
Grading LabIGI
CertificateIGI LG537225687
Dimensions8.75 × 6.20 × 4.03 mm
L/W Ratio1.41
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
8.75 mm6.20 mm1.82 ctG / SI1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG537225687
Side View
Table 61.5%Crown 40°Girdle: MED-STKPavilion 35°Culet: NoneDepth 65.0%

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 31
Current: $7,219 NZD|Low: $2,062 NZD|High: $11,135 NZD|Avg: $5,432 NZD
NZ Jewellers
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
November 2, 2026
Retailer 4$2,062 NZD
Retailer 6$3,320 NZD
Retailer 9$3,613 NZD
Retailer 7$3,851 NZD
Retailer 10$4,150 NZD
Retailer 2$5,297 NZD
Retailer 8$6,037 NZD
Retailer 5$6,480 NZD
NZ Jewellers$7,219 NZD
Retailer 3$11,001 NZD

44 data points across 10 retailers

11 retailers$2,062 NZD to $6,480 NZD

B+
Cheapest Retailer
-
$2,062 NZD
$1,160 USD
B
Retailer 2
-
$3,320 NZD
$1,868 USD
View
B
Retailer 3
-
$3,613 NZD
$2,033 USD
View
B
Retailer 4
-
$3,851 NZD
$2,167 USD
View
Retailer 5
-
$3,851 NZD
$2,167 USD
View
Price last confirmed 20 days ago
B
Retailer 6
-
$4,150 NZD
$2,335 USD
View
B
Retailer 7
-
$5,297 NZD
£2,347 GBP
View
B
Retailer 8
-
$6,037 NZD
$3,397 USD
View
B
Retailer 9
-
$6,480 NZD
$3,646 USD
View
Most Expensive
NZ Jewellers
fbc6f472-5549-4eda-8b45-6524e34ae689 · Nov 1
$7,219 NZD
$4,062 USD
View
Price under review
9 more retailers have this diamond
Prices start from $2,062 NZDSave up to $4,418 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+
1.82ct Radiant
$2,062 NZD