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Round|Lab Grown|IGI

1.40ct J SI1 Round Lab Grown Diamond

ID • J/SI1 • IGI LG451055673

Shape and cutting style on the report: Round brilliant

Certificate IGI LG451055673

Diamond specifications and retailer prices

From HK$5,194 HKD
As of November 5, 2026
Save HK$20,114 HKD (79%) vs most expensive(unlock to see where)
11 retailers carry this diamond
Most expensive: HK$25,307 HKD at MOH London · As of November 5, 2026
View at MOH London

About this 1.4ct lab-grown round diamond

This 1.4ct 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 LG451055673 or 451055673. Listed at 11 retailers as of November 5, 2026, with prices from HK$5,194 to HK$25,307, a HK$20,114 spread on the same certified stone. MOH London lists it at HK$25,307. 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

1.40
Carat
J
Colour
SI1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle35.3°
Pavilion angle40.3°
OriginLab Grown
Grading LabIGI
CertificateIGI LG451055673
Dimensions7.26 × 7.21 × 4.36 mm
L/W Ratio1.01
Girdle conditionFaceted
Culet sizePointed
Cert comments
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Top View
7.26 mm7.21 mm1.40 ctJ / SI1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG451055673
Side View
Table 58.5%Crown 35.3°Girdle: THN-MEDPavilion 40.3°Culet: NoneDepth 60.2%

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$25,307 HKD|Low: HK$5,194 HKD|High: HK$25,686 HKD|Avg: HK$10,644 HKD|-0.3%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
November 5, 2026
Retailer 4HK$5,194 HKD
Retailer 8HK$5,813 HKD
Retailer 6HK$6,025 HKD
Retailer 2HK$7,414 HKD
Retailer 5HK$7,767 HKD
Retailer 9HK$9,759 HKD
Retailer 7HK$9,830 HKD
Retailer 3HK$15,392 HKD
MOH LondonHK$25,307 HKD

17 data points across 9 retailers

11 retailersHK$5,194 HKD to HK$25,307 HKD

A
Cheapest Retailer
-
HK$5,194 HKD
A
Retailer 2
-
HK$5,649 HKD
View
B+
Retailer 3
-
HK$5,813 HKD
View
Final sale: no returns
Retailer 4
-
HK$6,025 HKD
View
Price last confirmed 21 days ago
B+
Retailer 5
-
HK$6,025 HKD
View
B+
Retailer 6
-
HK$7,414 HKD
View
B
Retailer 7
-
HK$7,767 HKD
View
B
Retailer 8
-
HK$9,830 HKD
View
B
Retailer 9
-
HK$15,392 HKD
View
B
Retailer 10
-
HK$16,938 HKD
View
Most Expensive
B
MOH London
LG451055673 · Nov 5
HK$25,307 HKD
£2,540 GBP
View
10 more retailers have this diamond
Prices start from HK$5,194 HKDSave up to HK$20,114 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
1.40ct Round
HK$5,194 HKD