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Marquise|Lab Grown|IGI

1.28ct D SI1 Marquise Lab Grown Diamond

VG • D/SI1 • IGI LG843658870

Shape and cutting style on the report: Marquise brilliant

Certificate IGI LG843658870

Diamond specifications and retailer prices

From HK$1,938 HKD
As of November 4, 2026
Save HK$5,644 HKD (74%) vs most expensive(unlock to see where)
7 retailers carry this diamond
Most expensive: HK$7,582 HKD at MOH London · As of November 5, 2026
View at MOH London

About this 1.28ct lab-grown marquise diamond

This 1.28ct lab-grown marquise sits in the one-and-a-quarter to one-and-a-half carat band, graded D colour (colourless) and SI1 clarity (slightly-included), with a very-good cut grade and certified by IGI LG843658870 or 843658870. Listed at 7 retailers as of November 4, 2026, with prices from HK$1,938 to HK$7,582, a HK$5,644 spread on the same certified stone. MOH London lists it at HK$7,582. 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

1.28
Carat
D
Colour
SI1
Clarity
Very Good
Cut

Specifications

CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle35.2°
Pavilion angle41°
OriginLab Grown
Grading LabIGI
CertificateIGI LG843658870
Dimensions11.23 × 5.69 × 3.53 mm
L/W Ratio1.97
Girdle conditionFaceted
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
11.23 mm5.69 mm1.28 ctD / SI1
OriginLab Grown
CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG843658870
Side View
Table 59.0%Crown 35.2°Girdle: MED-STKPavilion 41°Culet: NoneDepth 62.0%

Caratlytics Score

How it works →
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: Nov 4
Current: HK$7,582 HKD|Low: HK$1,938 HKD|High: HK$10,042 HKD|Avg: HK$4,678 HKD|-0.4%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
November 5, 2026
Retailer 3HK$1,938 HKD
Retailer 2HK$2,856 HKD
Retailer 6HK$2,926 HKD
Retailer 7HK$3,774 HKD
Retailer 5HK$5,523 HKD
Retailer 4HK$7,061 HKD
MOH LondonHK$7,582 HKD

15 data points across 7 retailers

7 retailersHK$1,938 HKD to HK$7,582 HKD

A
Cheapest Retailer
-
HK$1,938 HKD
A
Retailer 2
-
HK$2,856 HKD
View
B+
Retailer 3
-
HK$2,926 HKD
View
B+
Retailer 4
-
HK$3,774 HKD
View
B
Retailer 5
-
HK$5,523 HKD
View
B
Retailer 6
-
HK$7,061 HKD
View
Most Expensive
B
MOH London
LG843658870 · Nov 5
HK$7,582 HKD
£761 GBP
View
6 more retailers have this diamond
Prices start from HK$1,938 HKDSave up to HK$5,644 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
1.28ct Marquise
HK$1,938 HKD