Oval|Natural|IGI

0.31ct J SI1 Oval Natural Diamond

VG • J/SI1 • IGI 810632128

Shape and cutting style on the report: Oval brilliant

Certificate IGI 810632128

Diamond specifications and retailer prices

From $157 USD
As of October 29, 2026
Save $552 USD (78%) vs most expensive(unlock to see where)
11 retailers carry this diamond
Most expensive: $709 USD at NZ Jewellers · As of October 30, 2026
View at NZ Jewellers

About this 0.31ct natural oval diamond

This 0.31ct natural oval sits in the sub-half-carat band, graded J colour (near-colourless) and SI1 clarity (slightly-included), with a very-good cut grade and certified by IGI 810632128. Listed at 11 retailers as of October 29, 2026, with prices from $157 to $709, a $552 spread on the same certified stone. NZ Jewellers lists it at $709. 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

0.31
Carat
J
Color
SI1
Clarity
Very Good
Cut

Specifications

CutVery Good
PolishVery Good
SymmetryGood
FluorescenceFaint
Crown angle40.4°
Pavilion angle39.8°
OriginNatural
Grading LabIGI
CertificateIGI 810632128
Dimensions5.39 × 3.64 × 2.41 mm
L/W Ratio1.48
Girdle conditionFaceted
Top View
5.39 mm3.64 mm0.31 ctJ / SI1
OriginNatural
CutVery Good
PolishVery Good
SymmetryGood
FluorescenceFaint
CertificateIGI 810632128
Side View
Table 57.0%Crown 40.4°Girdle: THN-THKPavilion 39.8°Culet: NoneDepth 66.2%

Caratlytics Score

How it works →
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 29
Current: $709 USD|Low: $157 USD|High: $726 USD|Avg: $297 USD|-2.2%
NZ Jewellers
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
October 31, 2026
Retailer 11$157 USD
Retailer 9$169 USD
Retailer 10$175 USD
Retailer 5$211 USD
Retailer 2$230 USD
Retailer 6$243 USD
Retailer 7$286 USD
Retailer 8$318 USD
Retailer 4$344 USD
Retailer 3$363 USD
NZ Jewellers$709 USD

28 data points across 11 retailers

11 retailers$157 USD to $709 USD

A
Cheapest Retailer
-
$157 USD
A
Retailer 2
-
$169 USD
View
B+
Retailer 3
-
$175 USD
View
B+
Retailer 4
-
$211 USD
View
B+
Retailer 5
-
$230 USD
£181 GBP
View
B+
Retailer 6
-
$243 USD
ZAR 3,921 ZAR
View
B+
Retailer 7
-
$286 USD
View
B+
Retailer 8
-
$318 USD
£250 GBP
View
B
Retailer 9
-
$344 USD
€328 EUR
View
B
Retailer 10
-
$363 USD
£286 GBP
View
Most Expensive
C
NZ Jewellers
daf122e2-19aa-43cc-8de9-1d561d7341f8 · Oct 30
$709 USD
View
10 more retailers have this diamond
Prices start from $157 USDSave up to $552 USD

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
0.31ct Oval
$157 USD