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1.55ct G SI1 Round Lab Grown Diamond

ID • G/SI1 • IGI LG816613920

Shape and cutting style on the report: Round brilliant

Certificate IGI LG816613920

Diamond specifications and retailer prices

From HK$1,506 HKD
$192 USD
As of November 1, 2026
Save HK$7,222 HKD (83%) vs most expensive(unlock to see where)
15 retailers carry this diamond
Most expensive: HK$8,728 HKD at MOH London · As of November 1, 2026
View at MOH London

About this 1.55ct lab-grown round diamond

This 1.55ct 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 LG816613920 or 816613920. Listed at 15 retailers as of November 1, 2026, with prices from HK$1,506 to HK$8,728, a HK$7,222 spread on the same certified stone. MOH London lists it at HK$8,728. 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

1.55
Carat
G
Colour
SI1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle34.8°
Pavilion angle40.6°
OriginLab Grown
Grading LabIGI
CertificateIGI LG816613920
Dimensions7.46 × 7.40 × 4.58 mm
L/W Ratio1.01
Girdle conditionFaceted
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
7.46 mm7.40 mm1.55 ctG / SI1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG816613920
Side View
Table 55.0%Crown 34.8°Girdle: MediumPavilion 40.6°Culet: NoneDepth 61.6%

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 1
Current: HK$8,728 HKD|Low: HK$1,506 HKD|High: HK$8,828 HKD|Avg: HK$4,303 HKD
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
November 2, 2026
Retailer 7HK$1,506 HKD
Retailer 9HK$1,867 HKD
Retailer 4HK$3,130 HKD
Retailer 10HK$3,256 HKD
Retailer 3HK$3,324 HKD
Retailer 2HK$3,390 HKD
Retailer 6HK$4,739 HKD
Retailer 5HK$5,570 HKD
Retailer 8HK$6,904 HKD
MOH LondonHK$8,728 HKD

44 data points across 10 retailers

15 retailersHK$1,506 HKD to HK$8,728 HKD

A
Cheapest Retailer
-
HK$1,506 HKD
$192 USD
A
Retailer 2
-
HK$1,750 HKD
$223 USD
View
Retailer 3
-
HK$1,867 HKD
$238 USD
View
Price last confirmed 8 days ago
A
Retailer 4
-
HK$1,867 HKD
$238 USD
View
A
Retailer 5
-
HK$3,130 HKD
€380 EUR
View
B+
Retailer 6
-
HK$3,256 HKD
$415 USD
View
A
Retailer 7
-
HK$3,324 HKD
£334 GBP
View
A
Retailer 8
-
HK$3,390 HKD
£340 GBP
View
A
Retailer 9
-
HK$3,711 HKD
$473 USD
View
B+
Retailer 10
-
HK$4,739 HKD
$604 USD
View
B+
Retailer 11
-
HK$5,570 HKD
$710 USD
View
B
Retailer 12
-
HK$6,002 HKD
$765 USD
View
B+
Retailer 13
-
HK$6,421 HKD
$818 USD
View
B
Retailer 14
-
HK$6,904 HKD
$880 USD
View
Most Expensive
B
MOH London
LG816613920 · Nov 1
HK$8,728 HKD
£876 GBP
View
14 more retailers have this diamond
Prices start from HK$1,506 HKDSave up to HK$7,222 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
1.55ct Round
HK$1,506 HKD