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1.51ct G SI1 Round Lab Grown Diamond

ID • G/SI1 • IGI LG818686567

Shape and cutting style on the report: Round brilliant

Certificate IGI LG818686567

Diamond specifications and retailer prices

From HK$1,577 HKD
$201 USD
As of November 1, 2026
Save HK$7,580 HKD (83%) vs most expensive(unlock to see where)
15 retailers carry this diamond
Most expensive: HK$9,157 HKD at MOH London · As of November 1, 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 G colour (near-colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by IGI LG818686567 or 818686567. Listed at 15 retailers as of November 1, 2026, with prices from HK$1,577 to HK$9,157, a HK$7,580 spread on the same certified stone. MOH London lists it at HK$9,157. 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
G
Colour
SI1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle34.2°
Pavilion angle40.8°
OriginLab Grown
Grading LabIGI
CertificateIGI LG818686567
Dimensions7.36 × 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
7.36 mm7.33 mm1.51 ctG / SI1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG818686567
Side View
Table 57.0%Crown 34.2°Girdle: MediumPavilion 40.8°Culet: NoneDepth 61.7%

Caratlytics Score

How it works →
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 1
Current: HK$9,157 HKD|Low: HK$1,577 HKD|High: HK$9,267 HKD|Avg: HK$4,701 HKD|-1.1%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
November 2, 2026
Retailer 9HK$1,577 HKD
Retailer 11HK$1,961 HKD
Retailer 2HK$3,270 HKD
Retailer 12HK$3,397 HKD
Retailer 5HK$3,487 HKD
Retailer 6HK$3,554 HKD
Retailer 4HK$3,578 HKD
Retailer 7HK$5,053 HKD
Retailer 8HK$5,610 HKD
Retailer 3HK$6,714 HKD
Retailer 10HK$6,747 HKD
MOH LondonHK$9,157 HKD

44 data points across 12 retailers

15 retailersHK$1,577 HKD to HK$9,157 HKD

A
Cheapest Retailer
-
HK$1,577 HKD
$201 USD
A
Retailer 2
-
HK$1,828 HKD
$233 USD
View
Retailer 3
-
HK$1,961 HKD
$250 USD
View
Price last confirmed 8 days ago
A
Retailer 4
-
HK$1,961 HKD
$250 USD
View
A
Retailer 5
-
HK$3,270 HKD
€397 EUR
View
B+
Retailer 6
-
HK$3,397 HKD
$433 USD
View
A
Retailer 7
-
HK$3,487 HKD
£350 GBP
View
A
Retailer 8
-
HK$3,554 HKD
£357 GBP
View
A
Retailer 9
-
HK$3,578 HKD
$456 USD
View
B+
Retailer 10
-
HK$5,053 HKD
$644 USD
View
B+
Retailer 11
-
HK$5,610 HKD
$715 USD
View
B+
Retailer 12
-
HK$6,292 HKD
$802 USD
View
B
Retailer 13
-
HK$6,714 HKD
$856 USD
View
B
Retailer 14
-
HK$6,747 HKD
$860 USD
View
Most Expensive
B
MOH London
LG818686567 · Nov 1
HK$9,157 HKD
£919 GBP
View
14 more retailers have this diamond
Prices start from HK$1,577 HKDSave up to HK$7,580 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$1,577 HKD