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1.51ct E SI1 Round Lab Grown Diamond

EX • E/SI1 • IGI LG763660535

Shape and cutting style on the report: Round brilliant

Certificate IGI LG763660535

Diamond specifications and retailer prices

From HK$1,546 HKD
As of November 5, 2026
Save HK$9,673 HKD (86%) vs most expensive(unlock to see where)
17 retailers carry this diamond
Most expensive: HK$11,219 HKD at Brilliant Earth · As of November 5, 2026
View at Brilliant Earth

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 LG763660535 or 763660535. Listed at 17 retailers as of November 5, 2026, with prices from HK$1,546 to HK$11,219, a HK$9,673 spread on the same certified stone. Brilliant Earth lists it at HK$11,219. 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
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle34.5°
Pavilion angle40.3°
OriginLab Grown
Grading LabIGI
CertificateIGI LG763660535
Dimensions7.38 × 7.34 × 4.45 mm
L/W Ratio1.01
Girdle conditionFaceted
Culet sizePointed
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
7.38 mm7.34 mm1.51 ctE / SI1
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG763660535
Side View
Table 60.0%Crown 34.5°Girdle: MED-STKPavilion 40.3°Culet: NoneDepth 60.5%

Caratlytics Score

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A
Excellent
Excellent quality and great value
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See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 5
Current: HK$11,219 HKD|Low: HK$1,483 HKD|High: HK$11,219 HKD|Avg: HK$4,639 HKD
Brilliant Earth
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
November 6, 2026
Retailer 9HK$1,546 HKD
Retailer 3HK$1,914 HKD
Retailer 10HK$2,589 HKD
Retailer 4HK$3,279 HKD
Retailer 2HK$3,428 HKD
Retailer 7HK$3,515 HKD
Retailer 11HK$4,221 HKD
Retailer 6HK$5,727 HKD
Retailer 8HK$6,174 HKD
Retailer 5HK$8,920 HKD
Brilliant EarthHK$11,219 HKD

42 data points across 11 retailers

17 retailersHK$1,546 HKD to HK$11,219 HKD

A
Cheapest Retailer
-
HK$1,546 HKD
A
Retailer 2
-
HK$1,789 HKD
View
Retailer 3
-
HK$1,914 HKD
View
Price last confirmed 12 days ago
A
Retailer 4
-
HK$1,914 HKD
View
B+
Retailer 5
-
HK$2,589 HKD
View
A
Retailer 6
-
HK$3,279 HKD
View
A
Retailer 7
-
HK$3,311 HKD
View
A
Retailer 8
-
HK$3,428 HKD
View
A
Retailer 9
-
HK$3,515 HKD
View
B+
Retailer 10
-
HK$4,221 HKD
View
B+
Retailer 11
-
HK$4,519 HKD
View
B+
Retailer 12
-
HK$5,727 HKD
View
B+
Retailer 13
-
HK$6,151 HKD
View
B+
Retailer 14
-
HK$6,174 HKD
View
B+
Retailer 15
-
HK$6,245 HKD
View
B
Retailer 16
-
HK$8,920 HKD
View
Most Expensive
B
Brilliant Earth
20762441A · Nov 5
HK$11,219 HKD
$1,430 USD
View
16 more retailers have this diamond
Prices start from HK$1,546 HKDSave up to HK$9,673 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$1,546 HKD