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Oval|Natural|IGI

16.71ct J SI1 Oval Natural Diamond

VG • J/SI1 • IGI 819634381

Certificate IGI 819634381

Diamond specifications and retailer prices

From $389,542 SGD
₹29,020,078 INR
As of November 1, 2026
Save $148,841 SGD (28%) vs most expensive(unlock to see where)
2 retailers carry this diamond
Most expensive: $538,383 SGD at Yorxs · As of November 2, 2026
View at Yorxs

About this 16.71ct natural oval diamond

This 16.71ct natural oval sits in the over five carat band, graded J colour (near-colourless) and SI1 clarity (slightly-included), with a very-good cut grade and certified by IGI 819634381. Listed at 2 retailers as of November 1, 2026, with prices from $389,542 to $538,383, a $148,841 spread on the same certified stone. Yorxs lists it at $538,383. Cut grade matters more than carat or clarity for visible brilliance. If you can shift budget toward an Excellent or Ideal cut, do it before chasing higher colour or clarity.

The 4Cs

16.71
Carat
J
Colour
SI1
Clarity
Very Good
Cut

Specifications

CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
OriginNatural
Grading LabIGI
CertificateIGI 819634381
Dimensions21.01 × 13.97 × 8.40 mm
L/W Ratio1.50
Top View
21.01 mm13.97 mm16.71 ctJ / SI1
OriginNatural
CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI 819634381
Side View
Table 58.0%CrownGirdle: ThickPavilionCulet: NoneDepth 60.1%

Caratlytics Score

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B
Good
Decent quality, room for better deals
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Price History

Last verified: Nov 1
Current: $389,542 SGD|Low: $389,542 SGD|High: $538,383 SGD|Avg: $426,774 SGD|-0.0%
Retailer 1
Yorxs
November 2, 2026
Retailer 1$389,542 SGD
Yorxs$538,383 SGD

3 data points across 2 retailers

2 retailers$389,542 SGD to $538,383 SGD

B
Cheapest Retailer
-
$389,542 SGD
₹29,020,078 INR
Most Expensive
C
Yorxs
610-6A · Nov 2
$538,383 SGD
€401,084 EUR
View
1 more retailer has this diamond
Prices start from $389,542 SGDSave up to $148,841 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.

B
16.71ct Oval
$389,542 SGD