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Oval|Lab Grown|IGI

1.28ct D SI1 Oval Lab Grown Diamond

ID • D/SI1 • IGI LG621476577

Shape and cutting style on the report: Oval brilliant

Certificate IGI LG621476577

Diamond specifications and retailer prices

From HK$1,309 HKD
As of November 3, 2026
Save HK$6,266 HKD (83%) vs most expensive(unlock to see where)
14 retailers carry this diamond
Most expensive: HK$7,575 HKD at MOH London · As of November 4, 2026
View at MOH London

About this 1.28ct lab-grown oval diamond

This 1.28ct lab-grown oval 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 top-tier cut grade and certified by IGI LG621476577 or 621476577. Listed at 14 retailers as of November 3, 2026, with prices from HK$1,309 to HK$7,575, a HK$6,266 spread on the same certified stone. MOH London lists it at HK$7,575. 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

1.28
Carat
D
Colour
SI1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle35.7°
Pavilion angle40.6°
OriginLab Grown
Grading LabIGI
CertificateIGI LG621476577
Dimensions9.06 × 6.04 × 3.75 mm
L/W Ratio1.50
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
9.06 mm6.04 mm1.28 ctD / SI1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG621476577
Side View
Table 60.0%Crown 35.7°Girdle: MED-STKPavilion 40.6°Culet: NoneDepth 62.1%

Caratlytics Score

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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 3
Current: HK$7,575 HKD|Low: HK$1,309 HKD|High: HK$7,684 HKD|Avg: HK$3,602 HKD|-0.3%
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
Retailer 14
Retailer 15
November 4, 2026
Retailer 3HK$1,309 HKD
Retailer 10HK$1,520 HKD
Retailer 13HK$1,622 HKD
Retailer 14HK$1,622 HKD
Retailer 12HK$1,952 HKD
Retailer 8HK$2,853 HKD
Retailer 9HK$2,876 HKD
Retailer 4HK$2,923 HKD
Retailer 7HK$3,770 HKD
Retailer 6HK$4,185 HKD
Retailer 2HK$4,742 HKD
Retailer 15HK$5,220 HKD
Retailer 11HK$5,518 HKD
Retailer 5HK$5,878 HKD
MOH LondonHK$7,575 HKD

38 data points across 15 retailers

14 retailersHK$1,309 HKD to HK$7,575 HKD

A
Cheapest Retailer
-
HK$1,309 HKD
A
Retailer 2
-
HK$1,520 HKD
View
Retailer 3
-
HK$1,622 HKD
View
Price last confirmed 12 days ago
A
Retailer 4
-
HK$1,622 HKD
View
A
Retailer 5
-
HK$2,853 HKD
View
A
Retailer 6
-
HK$2,876 HKD
View
B+
Retailer 7
-
HK$2,923 HKD
View
B+
Retailer 8
-
HK$3,770 HKD
View
B+
Retailer 9
-
HK$4,185 HKD
View
B+
Retailer 10
-
HK$4,742 HKD
View
B+
Retailer 11
-
HK$5,220 HKD
View
B
Retailer 12
-
HK$5,518 HKD
View
B
Retailer 13
-
HK$5,878 HKD
View
Most Expensive
B
MOH London
LG621476577 · Nov 4
HK$7,575 HKD
£761 GBP
View
13 more retailers have this diamond
Prices start from HK$1,309 HKDSave up to HK$6,266 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 Oval
HK$1,309 HKD