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Radiant|Lab Grown|IGI

1.80ct G SI1 Radiant Lab Grown Diamond

ID • G/SI1 • IGI LG532240073

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

Certificate IGI LG532240073

Diamond specifications and retailer prices

From $1,892 SGD
$1,480 USD
As of October 31, 2026
Save $2,718 SGD (59%) vs most expensive(unlock to see where)
13 retailers carry this diamond
Most expensive: $5,137 SGD at NZ Jewellers · As of November 1, 2026
View at NZ Jewellers

About this 1.8ct lab-grown radiant diamond

This 1.8ct 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 LG532240073 or 532240073. Listed at 13 retailers as of October 31, 2026, with a 144% 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

1.80
Carat
G
Colour
SI1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle37.8°
Pavilion angle36.1°
OriginLab Grown
Grading LabIGI
CertificateIGI LG532240073
Dimensions8.42 × 6.18 × 4.17 mm
L/W Ratio1.36
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
8.42 mm6.18 mm1.80 ctG / SI1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG532240073
Side View
Table 65.5%Crown 37.8°Girdle: MED-STKPavilion 36.1°Culet: NoneDepth 67.5%

Caratlytics Score

How it works →
B+
Very Good
Strong quality and value balance
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See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Oct 31
Current: $5,137 SGD|Low: $1,892 SGD|High: $7,933 SGD|Avg: $3,685 SGD
NZ Jewellers
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
November 1, 2026
Retailer 5$1,892 SGD
Retailer 7$2,362 SGD
Retailer 10$2,571 SGD
Retailer 11$2,645 SGD
Retailer 8$2,741 SGD
Retailer 3$2,953 SGD
Retailer 4$3,768 SGD
Retailer 9$4,298 SGD
Retailer 6$4,610 SGD
NZ Jewellers$5,137 SGD
Retailer 2$7,827 SGD

43 data points across 11 retailers

13 retailers$1,892 SGD to $4,610 SGD

B+
Cheapest Retailer
-
$1,892 SGD
$1,480 USD
B
Retailer 2
-
$2,362 SGD
$1,848 USD
View
B
Retailer 3
-
$2,571 SGD
$2,011 USD
View
B
Retailer 4
-
$2,645 SGD
$2,069 USD
View
Final sale: no returns
B
Retailer 5
-
$2,741 SGD
$2,144 USD
View
Retailer 6
-
$2,741 SGD
$2,144 USD
View
Price last confirmed 20 days ago
B
Retailer 7
-
$2,953 SGD
$2,310 USD
View
B
Retailer 8
-
$3,768 SGD
£2,321 GBP
View
B
Retailer 9
-
$4,298 SGD
$3,362 USD
View
B
Retailer 10
-
$4,610 SGD
$3,606 USD
View
Most Expensive
NZ Jewellers
6cc1f5c0-179c-4eac-ac62-fa4737c45209 · Nov 1
$5,137 SGD
$4,018 USD
View
Price under review
10 more retailers have this diamond
Prices start from $1,892 SGDSave up to $2,718 SGD

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+
1.80ct Radiant
$1,892 SGD