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Oval|Lab Grown|IGI

3.98ct D VS1 Oval Lab Grown Diamond

EX • D/VS1 • IGI LG809665311

Shape and cutting style on the report: Oval brilliant

Certificate IGI LG809665311

Diamond specifications and retailer prices

From HK$5,366 HKD
$684 USD
As of October 31, 2026
Save HK$36,373 HKD (87%) vs most expensive(unlock to see where)
5 retailers carry this diamond
Most expensive: HK$41,739 HKD at Brilliant Earth · As of October 28, 2026
View at Brilliant Earth

About this 3.98ct lab-grown oval diamond

This 3.98ct lab-grown oval sits in the three to five carat band, graded D colour (colourless) and VS1 clarity (very-slightly-included), with a top-tier cut grade and certified by IGI LG809665311 or 809665311. Listed at 5 retailers as of October 28, 2026, with prices from HK$5,366 to HK$41,739, a HK$36,373 spread on the same certified stone. Brilliant Earth lists it at HK$41,739. 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

3.98
Carat
D
Colour
VS1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle34.8°
Pavilion angle40.6°
OriginLab Grown
Grading LabIGI
CertificateIGI LG809665311
Dimensions12.66 × 8.79 × 5.57 mm
L/W Ratio1.44
Girdle conditionFaceted
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
12.66 mm8.79 mm3.98 ctD / VS1
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG809665311
Side View
Table 60.0%Crown 34.8°Girdle: STK-THKPavilion 40.6°Culet: NoneDepth 63.4%

Caratlytics Score

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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 31
Current: HK$41,739 HKD|Low: HK$3,728 HKD|High: HK$51,232 HKD|Avg: HK$15,962 HKD|-18.5%
Brilliant Earth
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
Retailer 13
November 1, 2026
Retailer 5HK$3,728 HKD
Retailer 6HK$5,366 HKD
Retailer 8HK$5,947 HKD
Retailer 10HK$7,336 HKD
Retailer 2HK$9,257 HKD
Retailer 4HK$9,509 HKD
Retailer 9HK$14,648 HKD
Retailer 11HK$16,837 HKD
Retailer 13HK$17,218 HKD
Retailer 12HK$20,516 HKD
Retailer 3HK$20,716 HKD
Retailer 7HK$29,696 HKD
Brilliant EarthHK$41,739 HKD

37 data points across 13 retailers

5 retailersHK$5,366 HKD to HK$41,739 HKD

A
Cheapest Retailer
-
HK$5,366 HKD
$684 USD
Final sale: no returns
A
Retailer 2
-
HK$9,257 HKD
£929 GBP
View
Retailer 3
-
HK$14,648 HKD
$1,867 USD
View
Price last confirmed 46 days ago
Retailer 4
-
HK$29,696 HKD
$3,785 USD
View
Price last confirmed 17 days ago
Most Expensive
B
Brilliant Earth
20320420A · Oct 28
HK$41,739 HKD
$5,320 USD
View
4 more retailers have this diamond
Prices start from HK$5,366 HKDSave up to HK$36,373 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
3.98ct Oval
HK$5,366 HKD