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1.51ct I SI1 Round Lab Grown Diamond

EX • I/SI1 • IGI LG440014574

Shape and cutting style on the report: Round brilliant

Certificate IGI LG440014574

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)
12 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 LG440014574 or 440014574. Listed at 12 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
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle31.5°
Pavilion angle40.2°
OriginLab Grown
Grading LabIGI
CertificateIGI LG440014574
Dimensions7.54 × 7.51 × 4.42 mm
L/W Ratio1.00
Girdle conditionFaceted
Culet sizePointed
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) process Type IIa
Top View
7.54 mm7.51 mm1.51 ctI / SI1
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG440014574
Side View
Table 57.5%Crown 31.5°Girdle: MediumPavilion 40.2°Culet: NoneDepth 58.7%

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$40,701 HKD|Avg: HK$18,891 HKD|-0.3%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
Retailer 13
Retailer 14
November 6, 2026
Retailer 7HK$6,590 HKD
Retailer 8HK$10,779 HKD
Retailer 11HK$11,721 HKD
Retailer 13HK$12,058 HKD
Retailer 9HK$12,497 HKD
Retailer 14HK$12,497 HKD
Retailer 3HK$13,847 HKD
Retailer 5HK$17,103 HKD
Retailer 10HK$19,746 HKD
Retailer 2HK$22,484 HKD
Retailer 4HK$23,300 HKD
Retailer 12HK$23,434 HKD
Retailer 6HK$35,774 HKD
MOH LondonHK$40,053 HKD

43 data points across 14 retailers

12 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$12,058 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$22,484 HKD
View
B
Retailer 10
-
HK$23,300 HKD
View
B
Retailer 11
-
HK$23,434 HKD
View
Most Expensive
B
MOH London
LG440014574 · Nov 5
HK$40,053 HKD
£4,020 GBP
View
11 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