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1.55ct J SI1 Round Lab Grown Diamond

ID • J/SI1 • IGI LG500163392

Shape and cutting style on the report: Round brilliant

Certificate IGI LG500163392

Diamond specifications and retailer prices

From HK$6,747 HKD
$860 USD
As of October 31, 2026
Save HK$28,306 HKD (81%) vs most expensive(unlock to see where)
11 retailers carry this diamond
Most expensive: HK$35,053 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 J colour (near-colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by IGI LG500163392 or 500163392. Listed at 11 retailers as of October 31, 2026, with prices from HK$6,747 to HK$35,053, a HK$28,306 spread on the same certified stone. MOH London lists it at HK$35,053. 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

1.55
Carat
J
Colour
SI1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle33.2°
Pavilion angle41.3°
OriginLab Grown
Grading LabIGI
CertificateIGI LG500163392
Dimensions7.45 × 7.43 × 4.56 mm
L/W Ratio1.00
Girdle conditionFaceted
Culet sizePointed
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process and may include post-growth treatment Type IIa
Top View
7.45 mm7.43 mm1.55 ctJ / SI1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG500163392
Side View
Table 59.0%Crown 33.2°Girdle: MED-STKPavilion 41.3°Culet: NoneDepth 61.3%

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: Oct 31
Current: HK$35,053 HKD|Low: HK$6,747 HKD|High: HK$35,482 HKD|Avg: HK$16,254 HKD
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
November 1, 2026
Retailer 2HK$6,747 HKD
Retailer 3HK$9,407 HKD
Retailer 6HK$10,537 HKD
Retailer 4HK$10,913 HKD
Retailer 7HK$12,279 HKD
Retailer 9HK$15,456 HKD
Retailer 5HK$17,308 HKD
Retailer 8HK$20,901 HKD
MOH LondonHK$35,053 HKD

14 data points across 9 retailers

11 retailersHK$6,747 HKD to HK$35,053 HKD

A
Cheapest Retailer
-
HK$6,747 HKD
$860 USD
A
Retailer 2
-
HK$9,407 HKD
$1,199 USD
View
B+
Retailer 3
-
HK$10,231 HKD
$1,304 USD
View
B+
Retailer 4
-
HK$10,537 HKD
$1,343 USD
View
Final sale: no returns
B+
Retailer 5
-
HK$10,913 HKD
$1,391 USD
View
Retailer 6
-
HK$10,913 HKD
$1,391 USD
View
Price last confirmed 20 days ago
B+
Retailer 7
-
HK$12,279 HKD
$1,565 USD
View
B
Retailer 8
-
HK$17,308 HKD
$2,206 USD
View
B
Retailer 9
-
HK$20,454 HKD
$2,607 USD
View
B
Retailer 10
-
HK$20,901 HKD
$2,664 USD
View
Most Expensive
B
MOH London
LG500163392 · Nov 1
HK$35,053 HKD
£3,518 GBP
View
10 more retailers have this diamond
Prices start from HK$6,747 HKDSave up to HK$28,306 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$6,747 HKD