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Oval|Lab Grown|IGI

4.51ct F VS2 Oval Lab Grown Diamond

ID • F/VS2 • IGI LG778665294

Shape and cutting style on the report: Oval brilliant

Certificate IGI LG778665294

Diamond specifications and retailer prices

From HK$8,850 HKD
$1,128 USD
As of November 1, 2026
Save HK$37,206 HKD (81%) vs most expensive(unlock to see where)
8 retailers carry this diamond
Most expensive: HK$46,057 HKD at Brilliant Earth · As of November 2, 2026
View at Brilliant Earth

About this 4.51ct lab-grown oval diamond

This 4.51ct lab-grown oval sits in the three to five carat band, graded F colour (colourless) and VS2 clarity (very-slightly-included), with a top-tier cut grade and certified by IGI LG778665294 or 778665294. Listed at 8 retailers as of November 1, 2026, with prices from HK$8,850 to HK$46,057, a HK$37,206 spread on the same certified stone. Brilliant Earth lists it at HK$46,057. Lab-grown prices in the 2ct and up range have fallen 40 to 60% over the last 18 months. Use the cross-retailer spread above to find the lowest current listing.

The 4Cs

4.51
Carat
F
Colour
VS2
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle34°
Pavilion angle41.1°
OriginLab Grown
Grading LabIGI
CertificateIGI LG778665294
Dimensions13.45 × 9.24 × 5.76 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
13.45 mm9.24 mm4.51 ctF / VS2
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG778665294
Side View
Table 61.0%Crown 34°Girdle: MED-THKPavilion 41.1°Culet: NoneDepth 62.3%

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: Nov 1
Current: HK$46,057 HKD|Low: HK$8,850 HKD|High: HK$54,373 HKD|Avg: HK$17,893 HKD|-15.3%
Brilliant Earth
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
November 2, 2026
Retailer 8HK$8,850 HKD
Retailer 6HK$8,952 HKD
Retailer 2HK$9,023 HKD
Retailer 4HK$9,639 HKD
Retailer 5HK$13,746 HKD
Retailer 7HK$18,668 HKD
Retailer 3HK$25,051 HKD
Brilliant EarthHK$46,057 HKD

42 data points across 8 retailers

8 retailersHK$8,850 HKD to HK$46,057 HKD

B+
Cheapest Retailer
-
HK$8,850 HKD
$1,128 USD
A
Retailer 2
-
HK$8,952 HKD
$1,141 USD
View
A
Retailer 3
-
HK$9,023 HKD
£906 GBP
View
A
Retailer 4
-
HK$9,639 HKD
€1,170 EUR
View
B+
Retailer 5
-
HK$13,746 HKD
$1,752 USD
View
B+
Retailer 6
-
HK$18,668 HKD
$2,379 USD
View
B
Retailer 7
-
HK$25,051 HKD
£2,514 GBP
View
Most Expensive
B
Brilliant Earth
20286123A · Nov 2
HK$46,057 HKD
$5,870 USD
View
7 more retailers have this diamond
Prices start from HK$8,850 HKDSave up to HK$37,206 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
4.51ct Oval
HK$8,850 HKD