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Oval|Lab Grown|IGI

2.51ct F SI1 Oval Lab Grown Diamond

EX • F/SI1 • IGI LG762508091

Shape and cutting style on the report: Oval brilliant

Certificate IGI LG762508091

Diamond specifications and retailer prices

From HK$4,589 HKD
€557 EUR
As of October 31, 2026
Save HK$6,840 HKD (60%) vs most expensive(unlock to see where)
7 retailers carry this diamond
Most expensive: HK$14,475 HKD at Rare Carat · As of September 28, 2026
View at Rare Carat

About this 2.51ct lab-grown oval diamond

This 2.51ct lab-grown oval sits in the two to three carat band, graded F colour (colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by IGI LG762508091 or 762508091. Listed at 7 retailers as of October 31, 2026, with a 149% spread between the cheapest and most expensive listing. That is exactly the kind of price-discovery gap Carat Hunter was built to surface. 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

2.51
Carat
F
Colour
SI1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle36.1°
Pavilion angle40.4°
OriginLab Grown
Grading LabIGI
CertificateIGI LG762508091
Dimensions11.05 × 7.46 × 4.71 mm
L/W Ratio1.48
Girdle conditionFaceted
Culet sizePointed
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
11.05 mm7.46 mm2.51 ctF / SI1
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG762508091
Side View
Table 60.0%Crown 36.1°Girdle: STK-THKPavilion 40.4°Culet: NoneDepth 63.1%

Caratlytics Score

How it works →
A
Excellent
Excellent quality and great value
Unlock full score analysis
See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Oct 31
Current: HK$14,475 HKD|Low: HK$4,539 HKD|High: HK$15,416 HKD|Avg: HK$7,841 HKD|-6.1%
Rare Carat
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
November 2, 2026
Retailer 6HK$4,589 HKD
Retailer 2HK$4,841 HKD
Retailer 3HK$5,223 HKD
Retailer 7HK$6,088 HKD
Retailer 8HK$7,132 HKD
Retailer 4HK$9,895 HKD
Retailer 5HK$11,429 HKD
Rare CaratHK$14,475 HKD

35 data points across 8 retailers

7 retailersHK$4,589 HKD to HK$11,429 HKD

A
Cheapest Retailer
-
HK$4,589 HKD
€557 EUR
B+
Retailer 2
-
HK$4,841 HKD
$617 USD
View
A
Retailer 3
-
HK$5,223 HKD
£524 GBP
View
B+
Retailer 4
-
HK$6,088 HKD
$776 USD
View
B
Retailer 5
-
HK$9,895 HKD
$1,261 USD
View
B
Retailer 6
-
HK$11,429 HKD
£1,147 GBP
View
Most Expensive
Rare Carat
27N762508091 · Sep 28
HK$14,475 HKD
$1,845 USD
View
Price last confirmed 35 days ago
6 more retailers have this diamond
Prices start from HK$4,589 HKDSave up to HK$6,840 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
2.51ct Oval
HK$4,589 HKD