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Oval|Lab Grown|IGI

1.28ct E IF Oval Lab Grown Diamond

GD • E/IF • IGI LG743547088

Shape and cutting style on the report: Oval brilliant

Certificate IGI LG743547088

Diamond specifications and retailer prices

From HK$1,703 HKD
$217 USD
As of October 29, 2026
Save HK$6,737 HKD (80%) vs most expensive(unlock to see where)
18 retailers carry this diamond
Most expensive: HK$11,612 HKD at Rare Carat · As of October 18, 2026
View at Rare Carat

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 IF clarity (flawless or internally-flawless), with a standard cut grade and certified by IGI LG743547088 or 743547088. Listed at 18 retailers as of October 29, 2026, with a 396% spread between the cheapest and most expensive listing. That is exactly the kind of price-discovery gap Carat Hunter was built to surface. 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
IF
Clarity
Good
Cut

Specifications

CutGood
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle35.1°
Pavilion angle39.4°
OriginLab Grown
Grading LabIGI
CertificateIGI LG743547088
Dimensions8.54 × 6.12 × 3.83 mm
L/W Ratio1.40
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
8.54 mm6.12 mm1.28 ctE / IF
OriginLab Grown
CutGood
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG743547088
Side View
Table 57.0%Crown 35.1°Girdle: MED-STKPavilion 39.4°Culet: NoneDepth 62.6%

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 29
Current: HK$11,612 HKD|Low: HK$1,632 HKD|High: HK$11,808 HKD|Avg: HK$4,442 HKD|-1.7%
Rare Carat
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
November 1, 2026
Retailer 13HK$1,703 HKD
Retailer 3HK$1,899 HKD
Retailer 5HK$1,969 HKD
Retailer 14HK$2,110 HKD
Retailer 7HK$2,228 HKD
Retailer 12HK$2,919 HKD
Retailer 9HK$3,620 HKD
Retailer 8HK$3,876 HKD
Retailer 6HK$4,033 HKD
Retailer 10HK$5,151 HKD
Retailer 4HK$6,771 HKD
Retailer 11HK$6,794 HKD
Retailer 2HK$8,440 HKD
Rare CaratHK$11,612 HKD

43 data points across 14 retailers

18 retailersHK$1,703 HKD to HK$8,440 HKD

A
Cheapest Retailer
-
HK$1,703 HKD
$217 USD
A
Retailer 2
-
HK$1,899 HKD
$242 USD
View
Final sale: no returns
A
Retailer 3
-
HK$1,969 HKD
$251 USD
View
A
Retailer 4
-
HK$2,110 HKD
$269 USD
View
A
Retailer 5
-
HK$2,110 HKD
$269 USD
View
A
Retailer 6
-
HK$2,228 HKD
£224 GBP
View
B+
Retailer 7
-
HK$2,919 HKD
$372 USD
View
A
Retailer 8
-
HK$3,620 HKD
ZAR 7,454 ZAR
View
A
Retailer 9
-
HK$3,876 HKD
£389 GBP
View
B+
Retailer 10
-
HK$4,033 HKD
$514 USD
View
B+
Retailer 11
-
HK$5,151 HKD
A$1,010 AUD
View
B
Retailer 12
-
HK$6,708 HKD
$855 USD
View
B
Retailer 13
-
HK$6,771 HKD
$863 USD
View
B
Retailer 14
-
HK$6,794 HKD
$866 USD
View
B+
Retailer 15
-
HK$7,188 HKD
$916 USD
View
B
Retailer 16
-
HK$8,250 HKD
£828 GBP
View
B
Retailer 17
-
HK$8,440 HKD
£847 GBP
View
Most Expensive
Rare Carat
GD16362_l_743547088 · Oct 18
HK$11,612 HKD
$1,480 USD
View
Price last confirmed 13 days ago
17 more retailers have this diamond
Prices start from HK$1,703 HKDSave up to HK$6,737 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$1,703 HKD