CaratHunter
Plans
Oval|Lab Grown|IGI

1.39ct F SI1 Oval Lab Grown Diamond

ID • F/SI1 • IGI LG778648512

Shape and cutting style on the report: Oval brilliant

Certificate IGI LG778648512

Diamond specifications and retailer prices

From HK$7,297 HKD
$930 USD
As of November 2, 2026
1 retailer carries this diamond
Only listing: HK$7,297 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 1.39ct lab-grown oval diamond

This 1.39ct lab-grown oval sits in the one-and-a-quarter to one-and-a-half carat band, graded F colour (colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by IGI LG778648512 or 778648512. Listed at a single retailer as of November 2, 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

1.39
Carat
F
Colour
SI1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle36.7°
Pavilion angle40.4°
OriginLab Grown
Grading LabIGI
CertificateIGI LG778648512
Dimensions9.11 × 6.33 × 3.88 mm
L/W Ratio1.44
Girdle conditionFaceted
Top View
9.11 mm6.33 mm1.39 ctF / SI1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG778648512
Side View
Table 60.0%Crown 36.7°Girdle: MED-STKPavilion 40.4°Culet: NoneDepth 61.3%

Caratlytics Score

How it works →
B
Good
Decent quality, room for better deals
Unlock full score analysis
See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 2
Current: HK$1,631 HKD|Low: HK$1,631 HKD|High: HK$3,174 HKD|Avg: HK$2,604 HKD|-1.0%
Retailer 1
Retailer 2
Retailer 3
March 21, 2026
Retailer 1HK$1,631 HKD
Retailer 2HK$2,715 HKD
Retailer 3HK$3,174 HKD

3 data points across 3 retailers

1 retailer

B
Brilliant Earth
18052555A · Nov 2
HK$7,297 HKD
$930 USD
View

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.

B
1.39ct Oval
HK$7,297 HKD