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Marquise|Lab Grown|IGI

1.28ct F VS1 Marquise Lab Grown Diamond

ID • F/VS1 • IGI LG818660512

Shape and cutting style on the report: Marquise brilliant

Certificate IGI LG818660512

Diamond specifications and retailer prices

From HK$3,876 HKD
As of November 5, 2026
5 retailers carry this diamond
Most expensive: HK$6,624 HKD at Taylor and Hart · As of October 16, 2026
View at Taylor and Hart

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 F colour (colourless) and VS1 clarity (very-slightly-included), with a top-tier cut grade and certified by IGI LG818660512 or 818660512. Listed at 5 retailers as of November 5, 2026. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.28
Carat
F
Colour
VS1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryVery Good
FluorescenceNone
Crown angle34°
Pavilion angle39.5°
OriginLab Grown
Grading LabIGI
CertificateIGI LG818660512
Dimensions12.85 × 5.23 × 3.33 mm
L/W Ratio2.46
Girdle conditionFaceted
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
12.85 mm5.23 mm1.28 ctF / VS1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryVery Good
FluorescenceNone
CertificateIGI LG818660512
Side View
Table 55.0%Crown 34°Girdle: MED-STKPavilion 39.5°Culet: NoneDepth 63.7%

Caratlytics Score

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A
Excellent
Excellent quality and great value
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Price History

Last verified: Nov 5
Current: HK$5,609 HKD|Low: HK$2,526 HKD|High: HK$31,444 HKD|Avg: HK$7,195 HKD|-1.0%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Taylor and Hart
October 28, 2026
Retailer 4HK$2,605 HKD
Retailer 5HK$3,107 HKD
Retailer 10HK$3,146 HKD
Retailer 6HK$3,303 HKD
Retailer 3HK$3,876 HKD
Retailer 7HK$4,409 HKD
Retailer 8HK$5,256 HKD
Retailer 1HK$5,609 HKD
Taylor and HartHK$6,624 HKD
Retailer 9HK$8,763 HKD
Retailer 2HK$31,444 HKD

8 data points across 11 retailers

5 retailers

Retailer 1
-
HK$2,605 HKD
Price last confirmed 14 days ago
A
Retailer 2
-
HK$3,876 HKD
View
Retailer 3
-
HK$5,256 HKD
View
Price last confirmed 44 days ago
Retailer 4
-
HK$5,609 HKD
View
Price last confirmed 9 days ago
Most Expensive
Taylor and Hart
XIN0EJI · Oct 16
HK$6,624 HKD
$844 USD
View
Price last confirmed 20 days ago
4 more retailers have this diamond
Prices start from HK$3,876 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$3,876 HKD