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1.51ct I SI1 Round Lab Grown Diamond

ID • I/SI1 • IGI LG442068637

Shape and cutting style on the report: Round brilliant

Certificate IGI LG442068637

Diamond specifications and retailer prices

From HK$6,590 HKD
As of November 5, 2026
Save HK$33,463 HKD (84%) vs most expensive(unlock to see where)
11 retailers carry this diamond
Most expensive: HK$40,053 HKD at MOH London · As of November 5, 2026
View at MOH London

About this 1.51ct lab-grown round diamond

This 1.51ct lab-grown round sits in the one-and-a-half to two carat band, graded I colour (near-colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by IGI LG442068637 or 442068637. Listed at 11 retailers as of November 5, 2026, with prices from HK$6,590 to HK$40,053, a HK$33,463 spread on the same certified stone. MOH London lists it at HK$40,053. 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

1.51
Carat
I
Colour
SI1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle33.6°
Pavilion angle40.1°
OriginLab Grown
Grading LabIGI
CertificateIGI LG442068637
Dimensions7.37 × 7.46 × 4.51 mm
L/W Ratio1.01
Girdle conditionFaceted
Culet sizePointed
Top View
7.37 mm7.46 mm1.51 ctI / SI1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG442068637
Side View
Table 54.5%Crown 33.6°Girdle: MED-STKPavilion 40.1°Culet: NoneDepth 61.1%

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$40,053 HKD|Low: HK$6,590 HKD|High: HK$40,651 HKD|Avg: HK$17,924 HKD|-1.3%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
November 5, 2026
Retailer 2HK$6,590 HKD
Retailer 3HK$10,779 HKD
Retailer 6HK$12,066 HKD
Retailer 4HK$12,497 HKD
Retailer 7HK$13,847 HKD
Retailer 9HK$17,103 HKD
Retailer 5HK$19,746 HKD
Retailer 8HK$23,300 HKD
MOH LondonHK$40,053 HKD

14 data points across 9 retailers

11 retailersHK$6,590 HKD to HK$40,053 HKD

A
Cheapest Retailer
-
HK$6,590 HKD
B+
Retailer 2
-
HK$10,779 HKD
View
B+
Retailer 3
-
HK$11,721 HKD
View
B+
Retailer 4
-
HK$12,066 HKD
View
Final sale: no returns
Retailer 5
-
HK$12,497 HKD
View
Price last confirmed 25 days ago
B+
Retailer 6
-
HK$12,497 HKD
View
B+
Retailer 7
-
HK$13,847 HKD
View
B
Retailer 8
-
HK$19,746 HKD
View
B
Retailer 9
-
HK$23,300 HKD
View
B
Retailer 10
-
HK$23,434 HKD
View
Most Expensive
B
MOH London
LG442068637 · Nov 5
HK$40,053 HKD
£4,020 GBP
View
10 more retailers have this diamond
Prices start from HK$6,590 HKDSave up to HK$33,463 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
1.51ct Round
HK$6,590 HKD