CaratHunter
Plans
Round|Lab Grown|IGI

1.20ct I SI1 Round Lab Grown Diamond

ID • I/SI1 • IGI LG436072235

Shape and cutting style on the report: Round brilliant

Certificate IGI LG436072235

Diamond specifications and retailer prices

From HK$4,158 HKD
$530 USD
As of October 30, 2026
Save HK$36,067 HKD (90%) vs most expensive(unlock to see where)
12 retailers carry this diamond
Most expensive: HK$40,225 HKD at MOH London · As of October 29, 2026
View at MOH London

About this 1.2ct lab-grown round diamond

This 1.2ct lab-grown round sits in the classic one-carat band, graded I colour (near-colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by IGI LG436072235 or 436072235. Listed at 12 retailers as of October 29, 2026, with prices from HK$4,158 to HK$40,225, a HK$36,067 spread on the same certified stone. MOH London lists it at HK$40,225. 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

1.20
Carat
I
Colour
SI1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle33.7°
Pavilion angle41.4°
OriginLab Grown
Grading LabIGI
CertificateIGI LG436072235
Dimensions6.83 × 6.85 × 4.26 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
6.83 mm6.85 mm1.20 ctI / SI1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG436072235
Side View
Table 55.0%Crown 33.7°Girdle: THN-MEDPavilion 41.4°Culet: NoneDepth 62.3%

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 30
Current: HK$40,225 HKD|Low: HK$4,158 HKD|High: HK$40,544 HKD|Avg: HK$17,338 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
October 29, 2026
Retailer 5HK$4,158 HKD
Retailer 4HK$10,733 HKD
Retailer 9HK$12,020 HKD
Retailer 6HK$12,451 HKD
Retailer 8HK$12,451 HKD
Retailer 10HK$13,808 HKD
Retailer 11HK$16,947 HKD
Retailer 7HK$19,677 HKD
Retailer 2HK$21,270 HKD
Retailer 3HK$23,208 HKD
MOH LondonHK$40,225 HKD

18 data points across 11 retailers

12 retailersHK$4,158 HKD to HK$40,225 HKD

A
Cheapest Retailer
-
HK$4,158 HKD
$530 USD
B+
Retailer 2
-
HK$10,733 HKD
$1,368 USD
View
B+
Retailer 3
-
HK$11,682 HKD
$1,489 USD
View
B+
Retailer 4
-
HK$12,020 HKD
$1,532 USD
View
Final sale: no returns
Retailer 5
-
HK$12,451 HKD
$1,587 USD
View
Price last confirmed 19 days ago
B+
Retailer 6
-
HK$12,451 HKD
$1,587 USD
View
B
Retailer 7
-
HK$13,808 HKD
$1,760 USD
View
B
Retailer 8
-
HK$19,677 HKD
$2,508 USD
View
B
Retailer 9
-
HK$21,270 HKD
€2,582 EUR
View
B
Retailer 10
-
HK$23,208 HKD
$2,958 USD
View
B
Retailer 11
-
HK$23,341 HKD
$2,975 USD
View
Most Expensive
B
MOH London
LG436072235 · Oct 29
HK$40,225 HKD
£4,037 GBP
View
11 more retailers have this diamond
Prices start from HK$4,158 HKDSave up to HK$36,067 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
1.20ct Round
HK$4,158 HKD