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1.28ct E SI1 Round Lab Grown Diamond

VG • E/SI1 • IGI LG763605132

Shape and cutting style on the report: Round brilliant

Certificate IGI LG763605132

Diamond specifications and retailer prices

From HK$1,334 HKD
As of November 1, 2026
Save HK$6,398 HKD (83%) vs most expensive(unlock to see where)
12 retailers carry this diamond
Most expensive: HK$7,732 HKD at MOH London · As of November 2, 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 E colour (colourless) and SI1 clarity (slightly-included), with a very-good cut grade and certified by IGI LG763605132 or 763605132. Listed at 12 retailers as of November 1, 2026, with prices from HK$1,334 to HK$7,732, a HK$6,398 spread on the same certified stone. MOH London lists it at HK$7,732. 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
E
Colour
SI1
Clarity
Very Good
Cut

Specifications

CutVery Good
PolishVery Good
SymmetryVery Good
FluorescenceNone
Crown angle32.9°
Pavilion angle39.9°
OriginLab Grown
Grading LabIGI
CertificateIGI LG763605132
Dimensions7.04 × 7.02 × 4.16 mm
L/W Ratio1.00
Girdle conditionFaceted
Culet sizePointed
Cert comments
As Grown - No indication of post-growth treatment This Laboratory Grown Diamond was created by High Pressure High Temperature (HPHT) growth process Type II
Top View
7.04 mm7.02 mm1.28 ctE / SI1
OriginLab Grown
CutVery Good
PolishVery Good
SymmetryVery Good
FluorescenceNone
CertificateIGI LG763605132
Side View
Table 58.0%Crown 32.9°Girdle: MED-STKPavilion 39.9°Culet: NoneDepth 59.2%

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$7,732 HKD|Low: HK$855 HKD|High: HK$7,961 HKD|Avg: HK$3,330 HKD|-2.9%
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
November 4, 2026
Retailer 5HK$855 HKD
Retailer 10HK$1,334 HKD
Retailer 11HK$1,491 HKD
Retailer 4HK$1,655 HKD
Retailer 7HK$2,832 HKD
Retailer 8HK$2,934 HKD
Retailer 13HK$2,958 HKD
Retailer 3HK$3,209 HKD
Retailer 12HK$3,632 HKD
Retailer 2HK$3,648 HKD
Retailer 6HK$4,331 HKD
Retailer 9HK$4,707 HKD
MOH LondonHK$7,732 HKD

34 data points across 13 retailers

12 retailersHK$1,334 HKD to HK$7,732 HKD

A
Cheapest Retailer
-
HK$1,334 HKD
A
Retailer 2
-
HK$1,491 HKD
View
Final sale: no returns
Retailer 3
-
HK$1,655 HKD
View
Price last confirmed 12 days ago
A
Retailer 4
-
HK$2,832 HKD
View
B+
Retailer 5
-
HK$2,934 HKD
View
B+
Retailer 6
-
HK$2,958 HKD
View
B+
Retailer 7
-
HK$3,209 HKD
View
B+
Retailer 8
-
HK$3,632 HKD
View
B+
Retailer 9
-
HK$3,648 HKD
View
B
Retailer 10
-
HK$4,331 HKD
View
B
Retailer 11
-
HK$4,707 HKD
View
Most Expensive
B
MOH London
LG763605132 · Nov 2
HK$7,732 HKD
£776 GBP
View
11 more retailers have this diamond
Prices start from HK$1,334 HKDSave up to HK$6,398 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$1,334 HKD