CaratHunter
Plans
Radiant|Lab Grown|IGI

1.80ct H SI1 Radiant Lab Grown Diamond

ID • H/SI1 • IGI LG523265480

Shape and cutting style on the report: Cut cornered rectangular modified brilliant

Certificate IGI LG523265480

Diamond specifications and retailer prices

From HK$9,415 HKD
$1,200 USD
As of October 31, 2026
Save HK$35,095 HKD (79%) vs most expensive(unlock to see where)
11 retailers carry this diamond
Most expensive: HK$44,509 HKD at MOH London · As of November 1, 2026
View at MOH London

About this 1.8ct lab-grown radiant diamond

This 1.8ct lab-grown radiant sits in the one-and-a-half to two carat band, graded H colour (near-colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by IGI LG523265480 or 523265480. Listed at 11 retailers as of October 31, 2026, with prices from HK$9,415 to HK$44,509, a HK$35,095 spread on the same certified stone. MOH London lists it at HK$44,509. 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
H
Colour
SI1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle45.5°
OriginLab Grown
Grading LabIGI
CertificateIGI LG523265480
Dimensions7.88 × 5.98 × 4.10 mm
L/W Ratio1.32
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
7.88 mm5.98 mm1.80 ctH / SI1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG523265480
Side View
Table 66.5%Crown 45.5°Girdle: STK-THKPavilionCulet: NoneDepth 68.6%

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 31
Current: HK$44,509 HKD|Low: HK$9,415 HKD|High: HK$45,107 HKD|Avg: HK$22,591 HKD
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
November 1, 2026
Retailer 7HK$9,415 HKD
Retailer 6HK$13,432 HKD
Retailer 11HK$14,617 HKD
Retailer 12HK$15,040 HKD
Retailer 8HK$15,582 HKD
Retailer 5HK$15,916 HKD
Retailer 13HK$16,907 HKD
Retailer 3HK$20,862 HKD
Retailer 9HK$24,471 HKD
Retailer 2HK$26,872 HKD
Retailer 10HK$29,210 HKD
MOH LondonHK$44,509 HKD
Retailer 4HK$44,619 HKD

19 data points across 13 retailers

11 retailersHK$9,415 HKD to HK$44,509 HKD

A
Cheapest Retailer
-
HK$9,415 HKD
$1,200 USD
B+
Retailer 2
-
HK$13,432 HKD
$1,712 USD
View
B+
Retailer 3
-
HK$14,617 HKD
$1,863 USD
View
B+
Retailer 4
-
HK$15,040 HKD
$1,917 USD
View
Final sale: no returns
Retailer 5
-
HK$15,582 HKD
$1,986 USD
View
Price last confirmed 19 days ago
B+
Retailer 6
-
HK$15,582 HKD
$1,986 USD
View
B+
Retailer 7
-
HK$16,907 HKD
$2,155 USD
View
B
Retailer 8
-
HK$24,471 HKD
$3,119 USD
View
B
Retailer 9
-
HK$26,872 HKD
$3,425 USD
View
B
Retailer 10
-
HK$29,210 HKD
$3,723 USD
View
Most Expensive
B
MOH London
LG523265480 · Nov 1
HK$44,509 HKD
£4,467 GBP
View
10 more retailers have this diamond
Prices start from HK$9,415 HKDSave up to HK$35,095 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 Radiant
HK$9,415 HKD