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1.18ct I SI1 Round Lab Grown Diamond

ID • I/SI1 • IGI LG375933901

Shape and cutting style on the report: Round brilliant

Certificate IGI LG375933901

Diamond specifications and retailer prices

From HK$2,942 HKD
$375 USD
As of November 1, 2026
Save HK$5,547 HKD (65%) vs most expensive(unlock to see where)
5 retailers carry this diamond
Most expensive: HK$8,489 HKD at MOH London · As of November 1, 2026
View at MOH London

About this 1.18ct lab-grown round diamond

This 1.18ct 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 LG375933901 or 375933901. Listed at 5 retailers as of November 1, 2026, with prices from HK$2,942 to HK$8,489, a HK$5,547 spread on the same certified stone. MOH London lists it at HK$8,489. 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

1.18
Carat
I
Colour
SI1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle36°
Pavilion angle40.2°
OriginLab Grown
Grading LabIGI
CertificateIGI LG375933901
Dimensions6.77 × 6.74 × 4.19 mm
L/W Ratio1.00
Girdle conditionFaceted
Culet sizePointed
Cert comments
This Chemical Vapor Deposition (CVD) laboratory grown diamond is classified as Type IIa
Top View
6.77 mm6.74 mm1.18 ctI / SI1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG375933901
Side View
Table 55.5%Crown 36°Girdle: MediumPavilion 40.2°Culet: NoneDepth 62.0%

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: Nov 1
Current: HK$8,489 HKD|Low: HK$2,746 HKD|High: HK$8,599 HKD|Avg: HK$4,524 HKD
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
November 1, 2026
Retailer 3HK$2,942 HKD
Retailer 2HK$3,295 HKD
Retailer 5HK$3,703 HKD
Retailer 4HK$4,182 HKD
MOH LondonHK$8,489 HKD

11 data points across 5 retailers

5 retailersHK$2,942 HKD to HK$8,489 HKD

A
Cheapest Retailer
-
HK$2,942 HKD
$375 USD
Retailer 2
-
HK$3,295 HKD
$420 USD
View
Price last confirmed 13 days ago
A
Retailer 3
-
HK$3,703 HKD
$472 USD
View
A
Retailer 4
-
HK$4,182 HKD
$533 USD
View
Most Expensive
A
MOH London
LG375933901 · Nov 1
HK$8,489 HKD
£852 GBP
View
4 more retailers have this diamond
Prices start from HK$2,942 HKDSave up to HK$5,547 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
1.18ct Round
HK$2,942 HKD