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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 $1,651 AUD
$1,160 USD
As of October 31, 2026
Save $3,539 AUD (68%) vs most expensive(unlock to see where)
11 retailers carry this diamond
Most expensive: $5,783 AUD 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: $5,783 AUD|Low: $1,651 AUD|High: $8,919 AUD|Avg: $4,354 AUD
NZ Jewellers
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
November 1, 2026
Retailer 4$1,651 AUD
Retailer 6$2,659 AUD
Retailer 9$2,894 AUD
Retailer 7$3,085 AUD
Retailer 10$3,324 AUD
Retailer 3$4,243 AUD
Retailer 8$4,836 AUD
Retailer 5$5,190 AUD
NZ Jewellers$5,783 AUD
Retailer 2$8,812 AUD

43 data points across 10 retailers

11 retailers$1,651 AUD to $5,190 AUD

B+
Cheapest Retailer
-
$1,651 AUD
$1,160 USD
B
Retailer 2
-
$2,659 AUD
$1,868 USD
View
B
Retailer 3
-
$2,894 AUD
$2,033 USD
View
B
Retailer 4
-
$3,085 AUD
$2,167 USD
View
Retailer 5
-
$3,085 AUD
$2,167 USD
View
Price last confirmed 20 days ago
B
Retailer 6
-
$3,324 AUD
$2,335 USD
View
B
Retailer 7
-
$4,243 AUD
£2,347 GBP
View
B
Retailer 8
-
$4,836 AUD
$3,397 USD
View
B
Retailer 9
-
$5,190 AUD
$3,646 USD
View
Most Expensive
NZ Jewellers
fbc6f472-5549-4eda-8b45-6524e34ae689 · Nov 1
$5,783 AUD
$4,062 USD
View
Price under review
9 more retailers have this diamond
Prices start from $1,651 AUDSave up to $3,539 AUD

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
$1,651 AUD