CaratHunter
Plans
Round|Lab Grown|IGI

1.28ct G VS1 Round Lab Grown Diamond

ID • G/VS1 • IGI LG770639398

Shape and cutting style on the report: Round brilliant

Certificate IGI LG770639398

Diamond specifications and retailer prices

From HK$1,357 HKD
$173 USD
As of November 1, 2026
Save HK$6,505 HKD (83%) vs most expensive(unlock to see where)
19 retailers carry this diamond
Most expensive: HK$7,862 HKD at MOH London · As of November 1, 2026
View at MOH London

About this 1.28ct lab-grown round diamond

This 1.28ct lab-grown round sits in the one-and-a-quarter to one-and-a-half carat band, graded G colour (near-colourless) and VS1 clarity (very-slightly-included), with a top-tier cut grade and certified by IGI LG770639398 or 770639398. Listed at 19 retailers as of November 1, 2026, with prices from HK$1,357 to HK$7,862, a HK$6,505 spread on the same certified stone. MOH London lists it at HK$7,862. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.28
Carat
G
Colour
VS1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle35.8°
Pavilion angle41.1°
OriginLab Grown
Grading LabIGI
CertificateIGI LG770639398
Dimensions6.93 × 6.96 × 4.33 mm
L/W Ratio1.00
Girdle conditionFaceted
Culet sizePointed
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
6.93 mm6.96 mm1.28 ctG / VS1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG770639398
Side View
Table 57.0%Crown 35.8°Girdle: MediumPavilion 41.1°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: Nov 1
Current: HK$7,862 HKD|Low: HK$1,357 HKD|High: HK$7,962 HKD|Avg: HK$3,815 HKD
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
November 2, 2026
Retailer 11HK$1,357 HKD
Retailer 12HK$1,679 HKD
Retailer 9HK$2,905 HKD
Retailer 3HK$2,997 HKD
Retailer 6HK$3,002 HKD
Retailer 5HK$3,139 HKD
Retailer 4HK$3,656 HKD
Retailer 7HK$4,105 HKD
Retailer 10HK$4,119 HKD
Retailer 2HK$4,284 HKD
Retailer 8HK$5,335 HKD
MOH LondonHK$7,862 HKD

45 data points across 12 retailers

19 retailersHK$1,357 HKD to HK$7,862 HKD

A
Cheapest Retailer
-
HK$1,357 HKD
$173 USD
A
Retailer 2
-
HK$1,577 HKD
$201 USD
View
A
Retailer 3
-
HK$1,679 HKD
$214 USD
View
Retailer 4
-
HK$1,679 HKD
$214 USD
View
Price last confirmed 8 days ago
A
Retailer 5
-
HK$2,905 HKD
ZAR 5,981 ZAR
View
B+
Retailer 6
-
HK$2,997 HKD
$382 USD
View
A
Retailer 7
-
HK$3,002 HKD
£301 GBP
View
A
Retailer 8
-
HK$3,139 HKD
€381 EUR
View
A
Retailer 9
-
HK$3,358 HKD
$428 USD
View
B+
Retailer 10
-
HK$3,656 HKD
$466 USD
View
B+
Retailer 11
-
HK$4,105 HKD
A$805 AUD
View
B+
Retailer 12
-
HK$4,119 HKD
$525 USD
View
B+
Retailer 13
-
HK$4,284 HKD
$546 USD
View
Retailer 14
-
HK$5,171 HKD
$659 USD
View
Price last confirmed 47 days ago
B+
Retailer 15
-
HK$5,335 HKD
$680 USD
View
B+
Retailer 16
-
HK$5,406 HKD
$689 USD
View
B
Retailer 17
-
HK$5,837 HKD
$744 USD
View
B
Retailer 18
-
HK$6,026 HKD
$768 USD
View
Most Expensive
B
MOH London
LG770639398 · Nov 1
HK$7,862 HKD
£789 GBP
View
18 more retailers have this diamond
Prices start from HK$1,357 HKDSave up to HK$6,505 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 Round
HK$1,357 HKD