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Oval|Lab Grown|IGI

1.28ct E SI1 Oval Lab Grown Diamond

EX • E/SI1 • IGI LG801613455

Shape and cutting style on the report: Oval brilliant

Certificate IGI LG801613455

Diamond specifications and retailer prices

From HK$5,800 HKD
$740 USD
As of November 6, 2026
1 retailer carries this diamond
Only listing: HK$5,800 HKD at Brilliant Earth
Only one retailer lists this diamond right now, and it is shown above, so there is nothing to unlock. Similar diamonds are carried by several retailers.
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 SI1 clarity (slightly-included), with a top-tier cut grade and certified by IGI LG801613455 or 801613455. Listed at a single retailer as of November 6, 2026. If it later appears at another store, Carat Hunter will surface the price comparison automatically. SI-grade stones are eye-clean roughly 60 to 70% of the time at this carat range. Check the inclusion plot on the cert and ask the retailer for high-resolution video before buying.

The 4Cs

1.28
Carat
E
Colour
SI1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle35°
Pavilion angle41.2°
OriginLab Grown
Grading LabIGI
CertificateIGI LG801613455
Dimensions8.92 × 6.12 × 3.83 mm
L/W Ratio1.46
Girdle conditionFaceted
Culet sizePointed
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
8.92 mm6.12 mm1.28 ctE / SI1
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG801613455
Side View
Table 59.0%Crown 35°Girdle: THN-MEDPavilion 41.2°Culet: NoneDepth 62.6%

Caratlytics Score

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B
Good
Decent quality, room for better deals
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Price History

Last verified: Nov 6
Current: HK$2,727 HKD|Low: HK$2,727 HKD|High: HK$4,773 HKD|Avg: HK$3,985 HKD
Retailer 1
Retailer 2
Retailer 3
Retailer 4
June 14, 2026
Retailer 1HK$2,727 HKD
Retailer 2HK$3,550 HKD
Retailer 3HK$4,561 HKD
Retailer 4HK$4,773 HKD

9 data points across 4 retailers

1 retailer

B
Brilliant Earth
19907666A · Nov 6
HK$5,800 HKD
$740 USD
View

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B
1.28ct Oval
HK$5,800 HKD