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Round|Lab Grown|IGI

1.80ct J SI1 Round Lab Grown Diamond

EX • J/SI1 • IGI LG480148959

Shape and cutting style on the report: Round brilliant

Certificate IGI LG480148959

Diamond specifications and retailer prices

From HK$10,199 HKD
$1,300 USD
As of October 29, 2026
Save HK$25,920 HKD (72%) vs most expensive(unlock to see where)
12 retailers carry this diamond
Most expensive: HK$36,120 HKD at MOH London · As of October 27, 2026
View at MOH London

About this 1.8ct lab-grown round diamond

This 1.8ct 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 LG480148959 or 480148959. Listed at 12 retailers as of October 27, 2026, with prices from HK$10,199 to HK$36,120, a HK$25,920 spread on the same certified stone. MOH London lists it at HK$36,120. 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
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle36.3°
Pavilion angle40.6°
OriginLab Grown
Grading LabIGI
CertificateIGI LG480148959
Dimensions7.69 × 7.64 × 4.88 mm
L/W Ratio1.01
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
7.69 mm7.64 mm1.80 ctJ / SI1
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG480148959
Side View
Table 55.5%Crown 36.3°Girdle: MED-STKPavilion 40.6°Culet: NoneDepth 63.6%

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: Oct 29
Current: HK$36,120 HKD|Low: HK$8,701 HKD|High: HK$36,548 HKD|Avg: HK$18,293 HKD|+0.1%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
Retailer 13
Retailer 14
October 30, 2026
Retailer 8HK$10,199 HKD
Retailer 7HK$10,890 HKD
Retailer 11HK$11,847 HKD
Retailer 13HK$12,192 HKD
Retailer 9HK$12,632 HKD
Retailer 14HK$12,632 HKD
Retailer 3HK$13,965 HKD
Retailer 2HK$16,579 HKD
Retailer 5HK$17,347 HKD
Retailer 10HK$19,944 HKD
Retailer 4HK$22,917 HKD
Retailer 12HK$23,670 HKD
MOH LondonHK$36,120 HKD
Retailer 6HK$36,140 HKD

38 data points across 14 retailers

12 retailersHK$10,199 HKD to HK$36,120 HKD

A
Cheapest Retailer
-
HK$10,199 HKD
$1,300 USD
A
Retailer 2
-
HK$10,890 HKD
$1,388 USD
View
B+
Retailer 3
-
HK$11,847 HKD
$1,510 USD
View
B+
Retailer 4
-
HK$12,192 HKD
$1,554 USD
View
Final sale: no returns
B+
Retailer 5
-
HK$12,632 HKD
$1,610 USD
View
Retailer 6
-
HK$12,632 HKD
$1,610 USD
View
Price last confirmed 17 days ago
B+
Retailer 7
-
HK$13,965 HKD
$1,780 USD
View
B+
Retailer 8
-
HK$16,579 HKD
£1,664 GBP
View
B
Retailer 9
-
HK$19,944 HKD
$2,542 USD
View
B
Retailer 10
-
HK$22,917 HKD
$2,921 USD
View
B
Retailer 11
-
HK$23,670 HKD
$3,017 USD
View
Most Expensive
B
MOH London
LG480148959 · Oct 27
HK$36,120 HKD
£3,625 GBP
View
11 more retailers have this diamond
Prices start from HK$10,199 HKDSave up to HK$25,920 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 Round
HK$10,199 HKD