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1.51ct E SI1 Round Lab Grown Diamond

ID • E/SI1 • IGI LG762572159

Shape and cutting style on the report: Round brilliant

Certificate IGI LG762572159

Diamond specifications and retailer prices

From HK$1,451 HKD
As of November 5, 2026
Save HK$4,338 HKD (75%) vs most expensive(unlock to see where)
6 retailers carry this diamond
Most expensive: HK$5,790 HKD at NZ Jewellers · As of November 5, 2026
View at NZ Jewellers

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 E colour (colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by IGI LG762572159 or 762572159. Listed at 6 retailers as of November 5, 2026, with prices from HK$1,451 to HK$5,790, a HK$4,338 spread on the same certified stone. NZ Jewellers lists it at HK$5,790. 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
E
Colour
SI1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle34.9°
Pavilion angle40.9°
OriginLab Grown
Grading LabIGI
CertificateIGI LG762572159
Dimensions7.30 × 7.33 × 4.53 mm
L/W Ratio1.00
Girdle conditionFaceted
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
7.30 mm7.33 mm1.51 ctE / SI1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG762572159
Side View
Table 58.0%Crown 34.9°Girdle: MED-STKPavilion 40.9°Culet: NoneDepth 61.9%

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$5,790 HKD|Low: HK$1,451 HKD|High: HK$9,297 HKD|Avg: HK$4,122 HKD|-10.0%
NZ Jewellers
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
November 6, 2026
Retailer 3HK$1,451 HKD
Retailer 5HK$1,702 HKD
Retailer 2HK$1,797 HKD
Retailer 4HK$1,820 HKD
Retailer 9HK$3,483 HKD
Retailer 6HK$4,433 HKD
Retailer 7HK$4,637 HKD
NZ JewellersHK$5,790 HKD
Retailer 8HK$9,297 HKD

9 data points across 9 retailers

6 retailersHK$1,451 HKD to HK$5,790 HKD

A
Cheapest Retailer
-
HK$1,451 HKD
A
Retailer 2
-
HK$1,702 HKD
View
A
Retailer 3
-
HK$1,797 HKD
View
Retailer 4
-
HK$1,820 HKD
View
Price last confirmed 12 days ago
B+
Retailer 5
-
HK$4,433 HKD
View
Most Expensive
B+
NZ Jewellers
282428de-b835-43c3-99ae-12c7b838cf29 · Nov 5
HK$5,790 HKD
$738 USD
View
5 more retailers have this diamond
Prices start from HK$1,451 HKDSave up to HK$4,338 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$1,451 HKD