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Round|Lab Grown|IGI

1.80ct J SI1 Round Lab Grown Diamond

VG • J/SI1 • IGI LG500151323

Shape and cutting style on the report: Round brilliant

Certificate IGI LG500151323

Diamond specifications and retailer prices

From HK$7,846 HKD
$1,000 USD
As of October 30, 2026
Save HK$28,413 HKD (78%) vs most expensive(unlock to see where)
12 retailers carry this diamond
Most expensive: HK$36,259 HKD at MOH London · As of October 29, 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 very-good cut grade and certified by IGI LG500151323 or 500151323. Listed at 12 retailers as of October 29, 2026, with prices from HK$7,846 to HK$36,259, a HK$28,413 spread on the same certified stone. MOH London lists it at HK$36,259. Cut grade matters more than carat or clarity for visible brilliance. If you can shift budget toward an Excellent or Ideal cut, do it before chasing higher colour or clarity.

The 4Cs

1.80
Carat
J
Colour
SI1
Clarity
Very Good
Cut

Specifications

CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle36.5°
Pavilion angle40.7°
OriginLab Grown
Grading LabIGI
CertificateIGI LG500151323
Dimensions7.63 × 7.67 × 4.85 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
7.63 mm7.67 mm1.80 ctJ / SI1
OriginLab Grown
CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG500151323
Side View
Table 58.0%Crown 36.5°Girdle: STK-THKPavilion 40.7°Culet: NoneDepth 63.4%

Caratlytics Score

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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: Oct 30
Current: HK$36,259 HKD|Low: HK$7,846 HKD|High: HK$36,548 HKD|Avg: HK$16,928 HKD|+0.5%
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
October 30, 2026
Retailer 2HK$7,846 HKD
Retailer 7HK$10,890 HKD
Retailer 10HK$11,847 HKD
Retailer 11HK$12,192 HKD
Retailer 8HK$12,632 HKD
Retailer 13HK$12,632 HKD
Retailer 3HK$13,965 HKD
Retailer 6HK$16,579 HKD
Retailer 5HK$17,347 HKD
Retailer 9HK$19,944 HKD
Retailer 4HK$22,917 HKD
Retailer 12HK$23,670 HKD
MOH LondonHK$36,259 HKD

23 data points across 13 retailers

12 retailersHK$7,846 HKD to HK$36,259 HKD

A
Cheapest Retailer
-
HK$7,846 HKD
$1,000 USD
B+
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
Retailer 5
-
HK$12,632 HKD
$1,610 USD
View
Price last confirmed 18 days ago
B+
Retailer 6
-
HK$12,632 HKD
$1,610 USD
View
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
LG500151323 · Oct 29
HK$36,259 HKD
£3,639 GBP
View
11 more retailers have this diamond
Prices start from HK$7,846 HKDSave up to HK$28,413 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$7,846 HKD