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Princess|Lab Grown|IGI

1.80ct J SI1 Princess Lab Grown Diamond

ID • J/SI1 • IGI LG451055777

Shape and cutting style on the report: Princess cut

Certificate IGI LG451055777

Diamond specifications and retailer prices

From HK$7,924 HKD
$1,010 USD
As of October 30, 2026
Save HK$31,235 HKD (80%) vs most expensive(unlock to see where)
10 retailers carry this diamond
Most expensive: HK$39,159 HKD at MOH London · As of October 29, 2026
View at MOH London

About this 1.8ct lab-grown princess diamond

This 1.8ct lab-grown princess 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 LG451055777 or 451055777. Listed at 10 retailers as of October 29, 2026, with prices from HK$7,924 to HK$39,159, a HK$31,235 spread on the same certified stone. MOH London lists it at HK$39,159. 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

1.80
Carat
J
Colour
SI1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryVery Good
FluorescenceNone
Crown angle45.3°
Pavilion angle38.6°
OriginLab Grown
Grading LabIGI
CertificateIGI LG451055777
Dimensions6.73 × 6.54 × 4.72 mm
L/W Ratio1.03
Culet sizePointed
Cert comments
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Top View
6.73 mm6.54 mm1.80 ctJ / SI1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryVery Good
FluorescenceNone
CertificateIGI LG451055777
Side View
Table 70.5%Crown 45.3°Girdle: MED-STKPavilion 38.6°Culet: NoneDepth 72.2%

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 30
Current: HK$39,159 HKD|Low: HK$7,924 HKD|High: HK$39,418 HKD|Avg: HK$19,443 HKD|+0.5%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
October 30, 2026
Retailer 2HK$7,924 HKD
Retailer 3HK$10,450 HKD
Retailer 5HK$13,455 HKD
Retailer 7HK$16,743 HKD
Retailer 4HK$19,175 HKD
Retailer 6HK$22,596 HKD
MOH LondonHK$39,159 HKD

11 data points across 7 retailers

10 retailersHK$7,924 HKD to HK$39,159 HKD

A
Cheapest Retailer
-
HK$7,924 HKD
$1,010 USD
B+
Retailer 2
-
HK$10,450 HKD
$1,332 USD
View
A
Retailer 3
-
HK$11,368 HKD
$1,449 USD
View
B+
Retailer 4
-
HK$12,122 HKD
$1,545 USD
View
Retailer 5
-
HK$12,122 HKD
$1,545 USD
View
Price last confirmed 19 days ago
B+
Retailer 6
-
HK$13,455 HKD
$1,715 USD
View
B
Retailer 7
-
HK$19,175 HKD
$2,444 USD
View
B
Retailer 8
-
HK$22,596 HKD
$2,880 USD
View
B
Retailer 9
-
HK$22,721 HKD
$2,896 USD
View
Most Expensive
B
MOH London
LG451055777 · Oct 29
HK$39,159 HKD
£3,930 GBP
View
9 more retailers have this diamond
Prices start from HK$7,924 HKDSave up to HK$31,235 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
1.80ct Princess
HK$7,924 HKD