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Radiant|Lab Grown|IGI

1.80ct G SI1 Radiant Lab Grown Diamond

ID • G/SI1 • IGI LG538275665

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

Certificate IGI LG538275665

Diamond specifications and retailer prices

From HK$11,612 HKD
$1,480 USD
As of October 31, 2026
Save HK$16,680 HKD (59%) vs most expensive(unlock to see where)
12 retailers carry this diamond
Most expensive: HK$31,524 HKD 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 LG538275665 or 538275665. Listed at 12 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 angle38.2°
Pavilion angle34.3°
OriginLab Grown
Grading LabIGI
CertificateIGI LG538275665
Dimensions8.77 × 6.06 × 3.99 mm
L/W Ratio1.45
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
8.77 mm6.06 mm1.80 ctG / SI1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG538275665
Side View
Table 68.5%Crown 38.2°Girdle: STK-THKPavilion 34.3°Culet: NoneDepth 65.8%

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: HK$31,524 HKD|Low: HK$11,612 HKD|High: HK$48,615 HKD|Avg: HK$22,618 HKD
NZ Jewellers
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
November 2, 2026
Retailer 5HK$11,612 HKD
Retailer 7HK$14,499 HKD
Retailer 10HK$15,778 HKD
Retailer 11HK$16,233 HKD
Retailer 8HK$16,821 HKD
Retailer 3HK$18,124 HKD
Retailer 2HK$23,126 HKD
Retailer 9HK$26,377 HKD
Retailer 6HK$28,292 HKD
NZ JewellersHK$31,524 HKD
Retailer 4HK$48,037 HKD

44 data points across 11 retailers

12 retailersHK$11,612 HKD to HK$28,292 HKD

B+
Cheapest Retailer
-
HK$11,612 HKD
$1,480 USD
B
Retailer 2
-
HK$14,499 HKD
$1,848 USD
View
B
Retailer 3
-
HK$15,778 HKD
$2,011 USD
View
B
Retailer 4
-
HK$16,233 HKD
$2,069 USD
View
Final sale: no returns
B
Retailer 5
-
HK$16,821 HKD
$2,144 USD
View
Retailer 6
-
HK$16,821 HKD
$2,144 USD
View
Price last confirmed 20 days ago
B
Retailer 7
-
HK$18,124 HKD
$2,310 USD
View
B
Retailer 8
-
HK$23,126 HKD
£2,321 GBP
View
B
Retailer 9
-
HK$26,377 HKD
$3,362 USD
View
B
Retailer 10
-
HK$28,292 HKD
$3,606 USD
View
Most Expensive
NZ Jewellers
ab334890-b7dd-48d4-a95b-7a968d70133b · Nov 1
HK$31,524 HKD
$4,018 USD
View
Price under review
10 more retailers have this diamond
Prices start from HK$11,612 HKDSave up to HK$16,680 HKD

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
HK$11,612 HKD