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1.37ct J SI1 Round Lab Grown Diamond

EX • J/SI1 • IGI LG451057583

Shape and cutting style on the report: Round brilliant

Certificate IGI LG451057583

Diamond specifications and retailer prices

From HK$5,084 HKD
As of November 5, 2026
Save HK$19,705 HKD (79%) vs most expensive(unlock to see where)
11 retailers carry this diamond
Most expensive: HK$24,789 HKD at MOH London · As of November 5, 2026
View at MOH London

About this 1.37ct lab-grown round diamond

This 1.37ct lab-grown round sits in the one-and-a-quarter to one-and-a-half carat band, graded J colour (near-colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by IGI LG451057583 or 451057583. Listed at 11 retailers as of November 5, 2026, with prices from HK$5,084 to HK$24,789, a HK$19,705 spread on the same certified stone. MOH London lists it at HK$24,789. 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

1.37
Carat
J
Colour
SI1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryVery Good
FluorescenceNone
Crown angle31.6°
Pavilion angle40.1°
OriginLab Grown
Grading LabIGI
CertificateIGI LG451057583
Dimensions7.31 × 7.26 × 4.25 mm
L/W Ratio1.01
Girdle conditionFaceted
Culet sizePointed
Cert comments
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Top View
7.31 mm7.26 mm1.37 ctJ / SI1
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryVery Good
FluorescenceNone
CertificateIGI LG451057583
Side View
Table 57.5%Crown 31.6°Girdle: MED-STKPavilion 40.1°Culet: NoneDepth 58.3%

Caratlytics Score

How it works →
A
Excellent
Excellent quality and great value
Unlock full score analysis
See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 5
Current: HK$24,789 HKD|Low: HK$4,888 HKD|High: HK$25,158 HKD|Avg: HK$10,869 HKD|-0.3%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
November 5, 2026
Retailer 5HK$5,084 HKD
Retailer 8HK$5,688 HKD
Retailer 6HK$5,900 HKD
Retailer 2HK$6,198 HKD
Retailer 4HK$7,296 HKD
Retailer 9HK$9,595 HKD
Retailer 7HK$9,634 HKD
Retailer 3HK$15,071 HKD
Retailer 10HK$16,883 HKD
MOH LondonHK$24,789 HKD

16 data points across 10 retailers

11 retailersHK$5,084 HKD to HK$24,789 HKD

A
Cheapest Retailer
-
HK$5,084 HKD
B+
Retailer 2
-
HK$5,539 HKD
View
B+
Retailer 3
-
HK$5,688 HKD
View
Final sale: no returns
Retailer 4
-
HK$5,900 HKD
View
Price last confirmed 21 days ago
B+
Retailer 5
-
HK$5,900 HKD
View
B+
Retailer 6
-
HK$6,198 HKD
View
B+
Retailer 7
-
HK$7,296 HKD
View
B
Retailer 8
-
HK$9,634 HKD
View
B
Retailer 9
-
HK$15,071 HKD
View
B
Retailer 10
-
HK$16,593 HKD
View
Most Expensive
B
MOH London
LG451057583 · Nov 5
HK$24,789 HKD
£2,488 GBP
View
10 more retailers have this diamond
Prices start from HK$5,084 HKDSave up to HK$19,705 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.

A
1.37ct Round
HK$5,084 HKD