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Radiant|Lab Grown|IGI

1.28ct E VVS1 Radiant Lab Grown Diamond

ID • E/VVS1 • IGI LG831645783

Shape and cutting style on the report: Cut cornered rectangular modified brilliant

Certificate IGI LG831645783

Diamond specifications and retailer prices

From HK$1,734 HKD
$221 USD
As of October 30, 2026
Save HK$8,937 HKD (84%) vs most expensive(unlock to see where)
20 retailers carry this diamond
Most expensive: HK$10,671 HKD at Brilliant Earth · As of October 29, 2026
View at Brilliant Earth

About this 1.28ct lab-grown radiant diamond

This 1.28ct lab-grown radiant sits in the one-and-a-quarter to one-and-a-half carat band, graded E colour (colourless) and VVS1 clarity (very-very-slightly-included), with a top-tier cut grade and certified by IGI LG831645783 or 831645783. Listed at 20 retailers as of October 29, 2026, with prices from HK$1,734 to HK$10,671, a HK$8,937 spread on the same certified stone. Brilliant Earth lists it at HK$10,671. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.28
Carat
E
Colour
VVS1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle40.5°
Pavilion angle35.4°
OriginLab Grown
Grading LabIGI
CertificateIGI LG831645783
Dimensions7.80 × 5.38 × 3.62 mm
L/W Ratio1.45
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
7.80 mm5.38 mm1.28 ctE / VVS1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG831645783
Side View
Table 63.0%Crown 40.5°Girdle: MediumPavilion 35.4°Culet: NoneDepth 67.3%

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: Oct 30
Current: HK$10,671 HKD|Low: HK$1,711 HKD|High: HK$11,142 HKD|Avg: HK$5,429 HKD|-4.2%
Brilliant Earth
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
Retailer 16
Retailer 17
Retailer 18
Retailer 19
Retailer 20
October 30, 2026
Retailer 7HK$1,734 HKD
Retailer 11HK$1,946 HKD
Retailer 16HK$2,017 HKD
Retailer 4HK$2,150 HKD
Retailer 6HK$2,150 HKD
Retailer 3HK$2,903 HKD
Retailer 14HK$3,698 HKD
Retailer 19HK$3,732 HKD
Retailer 2HK$4,005 HKD
Retailer 20HK$4,857 HKD
Retailer 15HK$5,263 HKD
Retailer 9HK$6,921 HKD
Retailer 17HK$6,944 HKD
Retailer 18HK$7,062 HKD
Retailer 12HK$7,125 HKD
Retailer 10HK$7,334 HKD
Retailer 8HK$7,415 HKD
Retailer 13HK$8,669 HKD
Retailer 5HK$9,898 HKD
Brilliant EarthHK$10,671 HKD

37 data points across 20 retailers

20 retailersHK$1,734 HKD to HK$10,671 HKD

A
Cheapest Retailer
-
HK$1,734 HKD
$221 USD
A
Retailer 2
-
HK$1,946 HKD
$248 USD
View
Final sale: no returns
A
Retailer 3
-
HK$2,017 HKD
$257 USD
View
A
Retailer 4
-
HK$2,150 HKD
$274 USD
View
A
Retailer 5
-
HK$2,150 HKD
$274 USD
View
B+
Retailer 6
-
HK$2,903 HKD
$370 USD
View
A
Retailer 7
-
HK$3,698 HKD
ZAR 7,614 ZAR
View
A
Retailer 8
-
HK$3,732 HKD
€453 EUR
View
A
Retailer 9
-
HK$4,005 HKD
£402 GBP
View
B+
Retailer 10
-
HK$4,857 HKD
$619 USD
View
B+
Retailer 11
-
HK$5,263 HKD
A$1,032 AUD
View
B+
Retailer 12
-
HK$6,921 HKD
$882 USD
View
B+
Retailer 13
-
HK$6,944 HKD
$885 USD
View
Retailer 14
-
HK$7,062 HKD
$900 USD
View
Price last confirmed 9 days ago
Retailer 15
-
HK$7,125 HKD
A$1,397 AUD
View
Price last confirmed 25 days ago
B+
Retailer 16
-
HK$7,334 HKD
$935 USD
View
B+
Retailer 17
-
HK$7,415 HKD
$945 USD
View
B
Retailer 18
-
HK$8,669 HKD
£870 GBP
View
B
Retailer 19
-
HK$9,898 HKD
$1,261 USD
View
Most Expensive
B
Brilliant Earth
21123272A · Oct 29
HK$10,671 HKD
$1,360 USD
View
19 more retailers have this diamond
Prices start from HK$1,734 HKDSave up to HK$8,937 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 Radiant
HK$1,734 HKD