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1.30ct J SI1 Round Lab Grown Diamond

EX • J/SI1 • IGI LG480171499

Shape and cutting style on the report: Round brilliant

Certificate IGI LG480171499

Diamond specifications and retailer prices

From HK$4,840 HKD
As of November 5, 2026
Save HK$21,134 HKD (81%) vs most expensive(unlock to see where)
11 retailers carry this diamond
Most expensive: HK$25,975 HKD at MOH London · As of November 5, 2026
View at MOH London

About this 1.3ct lab-grown round diamond

This 1.3ct 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 LG480171499 or 480171499. Listed at 11 retailers as of November 5, 2026, with prices from HK$4,840 to HK$25,975, a HK$21,134 spread on the same certified stone. MOH London lists it at HK$25,975. 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

1.30
Carat
J
Colour
SI1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle36.3°
Pavilion angle40.2°
OriginLab Grown
Grading LabIGI
CertificateIGI LG480171499
Dimensions6.93 × 6.97 × 4.34 mm
L/W Ratio1.01
Girdle conditionFaceted
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
6.93 mm6.97 mm1.30 ctJ / SI1
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG480171499
Side View
Table 56.0%Crown 36.3°Girdle: MediumPavilion 40.2°Culet: NoneDepth 62.3%

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$25,975 HKD|Low: HK$4,644 HKD|High: HK$26,393 HKD|Avg: HK$9,573 HKD|-1.3%
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$4,840 HKD
Retailer 8HK$5,421 HKD
Retailer 2HK$5,884 HKD
Retailer 6HK$6,002 HKD
Retailer 9HK$6,002 HKD
Retailer 3HK$7,021 HKD
Retailer 7HK$9,187 HKD
Retailer 10HK$9,477 HKD
Retailer 4HK$14,890 HKD
MOH LondonHK$25,975 HKD

21 data points across 10 retailers

11 retailersHK$4,840 HKD to HK$25,975 HKD

A
Cheapest Retailer
-
HK$4,840 HKD
B+
Retailer 2
-
HK$5,421 HKD
View
B+
Retailer 3
-
HK$5,421 HKD
View
Final sale: no returns
B+
Retailer 4
-
HK$5,884 HKD
View
Retailer 5
-
HK$6,002 HKD
View
Price last confirmed 21 days ago
B+
Retailer 6
-
HK$6,002 HKD
View
B+
Retailer 7
-
HK$7,021 HKD
View
B
Retailer 8
-
HK$9,187 HKD
View
B
Retailer 9
-
HK$14,890 HKD
View
B
Retailer 10
-
HK$15,777 HKD
View
Most Expensive
B
MOH London
LG480171499 · Nov 5
HK$25,975 HKD
£2,607 GBP
View
10 more retailers have this diamond
Prices start from HK$4,840 HKDSave up to HK$21,134 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
1.30ct Round
HK$4,840 HKD