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Oval|Lab Grown|IGI

1.28ct E VS1 Oval Lab Grown Diamond

ID • E/VS1 • IGI LG705550393

Shape and cutting style on the report: Oval brilliant

Certificate IGI LG705550393

Diamond specifications and retailer prices

From HK$3,413 HKD
$435 USD
As of October 30, 2026
Save HK$6,394 HKD (65%) vs most expensive(unlock to see where)
7 retailers carry this diamond
Most expensive: HK$9,807 HKD at Brilliant Earth · As of October 29, 2026
View at Brilliant Earth

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 E colour (colourless) and VS1 clarity (very-slightly-included), with a top-tier cut grade and certified by IGI LG705550393 or 705550393. Listed at 7 retailers as of October 29, 2026, with prices from HK$3,413 to HK$9,807, a HK$6,394 spread on the same certified stone. Brilliant Earth lists it at HK$9,807. 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
VS1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishVery Good
SymmetryVery Good
FluorescenceNone
Crown angle34.3°
Pavilion angle40.5°
OriginLab Grown
Grading LabIGI
CertificateIGI LG705550393
Dimensions9.06 × 6.11 × 3.68 mm
L/W Ratio1.48
Girdle conditionFaceted
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
9.06 mm6.11 mm1.28 ctE / VS1
OriginLab Grown
CutIdeal
PolishVery Good
SymmetryVery Good
FluorescenceNone
CertificateIGI LG705550393
Side View
Table 61.0%Crown 34.3°Girdle: THN-STKPavilion 40.5°Culet: NoneDepth 60.2%

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$3,615 HKD|Low: HK$3,327 HKD|High: HK$9,316 HKD|Avg: HK$5,059 HKD|+5.6%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
October 30, 2026
Retailer 7HK$3,413 HKD
Retailer 1HK$3,615 HKD
Retailer 4HK$3,658 HKD
Retailer 5HK$3,774 HKD
Retailer 3HK$4,825 HKD
Retailer 6HK$6,747 HKD
Retailer 2HK$9,257 HKD

18 data points across 7 retailers

7 retailersHK$3,413 HKD to HK$9,807 HKD

A
Cheapest Retailer
-
HK$3,413 HKD
$435 USD
A
Retailer 2
-
HK$3,615 HKD
£363 GBP
View
A
Retailer 3
-
HK$3,774 HKD
$481 USD
View
B+
Retailer 4
-
HK$4,825 HKD
$615 USD
View
B
Retailer 5
-
HK$6,747 HKD
$860 USD
View
B
Retailer 6
-
HK$9,257 HKD
£929 GBP
View
Most Expensive
B
Brilliant Earth
21757189A · Oct 29
HK$9,807 HKD
$1,250 USD
View
6 more retailers have this diamond
Prices start from HK$3,413 HKDSave up to HK$6,394 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$3,413 HKD