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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 $874 SGD
$684 USD
As of October 31, 2026
Save $5,927 SGD (87%) vs most expensive(unlock to see where)
5 retailers carry this diamond
Most expensive: $6,801 SGD 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 $874 to $6,801, a $5,927 spread on the same certified stone. Brilliant Earth lists it at $6,801. 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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Price History

Last verified: Oct 31
Current: $6,801 SGD|Low: $607 SGD|High: $8,348 SGD|Avg: $2,603 SGD|-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
October 31, 2026
Retailer 5$607 SGD
Retailer 6$874 SGD
Retailer 8$969 SGD
Retailer 10$1,195 SGD
Retailer 2$1,508 SGD
Retailer 4$1,549 SGD
Retailer 9$2,387 SGD
Retailer 11$2,743 SGD
Retailer 13$2,806 SGD
Retailer 12$3,343 SGD
Retailer 3$3,375 SGD
Retailer 7$4,839 SGD
Brilliant Earth$6,801 SGD

36 data points across 13 retailers

5 retailers$874 SGD to $6,801 SGD

A
Cheapest Retailer
-
$874 SGD
$684 USD
Final sale: no returns
A
Retailer 2
-
$1,508 SGD
£929 GBP
View
Retailer 3
-
$2,387 SGD
$1,867 USD
View
Price last confirmed 45 days ago
Retailer 4
-
$4,839 SGD
$3,785 USD
View
Price last confirmed 17 days ago
Most Expensive
B
Brilliant Earth
20320420A · Oct 28
$6,801 SGD
$5,320 USD
View
4 more retailers have this diamond
Prices start from $874 SGDSave up to $5,927 SGD

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
$874 SGD