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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 £866 GBP
$1,160 USD
As of October 31, 2026
Save £1,855 GBP (68%) vs most expensive(unlock to see where)
11 retailers carry this diamond
Most expensive: £3,032 GBP 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: £3,032 GBP|Low: £866 GBP|High: £4,676 GBP|Avg: £2,281 GBP
NZ Jewellers
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
October 31, 2026
Retailer 3£866 GBP
Retailer 6£1,394 GBP
Retailer 9£1,517 GBP
Retailer 7£1,617 GBP
Retailer 10£1,743 GBP
Retailer 2£2,224 GBP
Retailer 8£2,535 GBP
Retailer 5£2,721 GBP
NZ Jewellers£3,032 GBP
Retailer 4£4,644 GBP

43 data points across 10 retailers

11 retailers£866 GBP to £2,721 GBP

B+
Cheapest Retailer
-
£866 GBP
$1,160 USD
B
Retailer 2
-
£1,394 GBP
$1,868 USD
View
B
Retailer 3
-
£1,517 GBP
$2,033 USD
View
B
Retailer 4
-
£1,617 GBP
$2,167 USD
View
Retailer 5
-
£1,617 GBP
$2,167 USD
View
Price last confirmed 19 days ago
B
Retailer 6
-
£1,743 GBP
$2,335 USD
View
B
Retailer 7
-
£2,224 GBP
View
B
Retailer 8
-
£2,535 GBP
$3,397 USD
View
B
Retailer 9
-
£2,721 GBP
$3,646 USD
View
Most Expensive
NZ Jewellers
fbc6f472-5549-4eda-8b45-6524e34ae689 · Nov 1
£3,032 GBP
$4,062 USD
View
Price under review
9 more retailers have this diamond
Prices start from £866 GBPSave up to £1,855 GBP

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
£866 GBP