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Oval|Natural|IGI

1.31ct K SI1 Oval Natural Diamond

VG • K/SI1 • IGI 774635679

Shape and cutting style on the report: Oval brilliant

Certificate IGI 774635679

Diamond specifications and retailer prices

From $1,606 USD
As of November 5, 2026
Save $2,695 USD (63%) vs most expensive(unlock to see where)
15 retailers carry this diamond
Most expensive: $4,301 USD at NZ Jewellers · As of November 5, 2026
View at NZ Jewellers

About this 1.31ct natural oval diamond

This 1.31ct natural oval sits in the one-and-a-quarter to one-and-a-half carat band, graded K colour (faint-tinted) and SI1 clarity (slightly-included), with a very-good cut grade and certified by IGI 774635679. Listed at 15 retailers as of November 5, 2026, with prices from $1,606 to $4,301, a $2,695 spread on the same certified stone. NZ Jewellers lists it at $4,301. 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

1.31
Carat
K
Color
SI1
Clarity
Very Good
Cut

Specifications

CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle39°
Pavilion angle41°
OriginNatural
Grading LabIGI
CertificateIGI 774635679
Dimensions8.60 × 6.00 × 3.94 mm
L/W Ratio1.43
Girdle conditionFaceted
Culet sizePointed
Top View
8.60 mm6.00 mm1.31 ctK / SI1
OriginNatural
CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI 774635679
Side View
Table 61.0%Crown 39°Girdle: MED-STKPavilion 41°Culet: NoneDepth 65.7%

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: Nov 5
Current: $4,301 USD|Low: $1,606 USD|High: $4,591 USD|Avg: $2,305 USD|-6.3%
NZ Jewellers
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 6, 2026
Retailer 13$1,606 USD
Retailer 2$1,710 USD
Retailer 3$1,763 USD
Retailer 10$1,825 USD
Retailer 4$1,833 USD
Retailer 11$1,845 USD
Retailer 5$1,882 USD
Retailer 8$1,991 USD
Retailer 12$2,035 USD
Retailer 7$2,152 USD
Retailer 6$2,395 USD
Retailer 9$3,081 USD
NZ Jewellers$4,301 USD

35 data points across 13 retailers

15 retailers$1,606 USD to $4,301 USD

A
Cheapest Retailer
-
$1,606 USD
A
Retailer 2
-
$1,710 USD
View
B+
Retailer 3
-
$1,763 USD
View
A
Retailer 4
-
$1,825 USD
View
B+
Retailer 5
-
$1,833 USD
View
A
Retailer 6
-
$1,845 USD
View
Retailer 7
-
$1,882 USD
View
Price last confirmed 8 days ago
B+
Retailer 8
-
$1,975 USD
View
A
Retailer 9
-
$1,991 USD
View
B+
Retailer 10
-
$2,035 USD
View
A
Retailer 11
-
$2,152 USD
View
B+
Retailer 12
-
$2,395 USD
View
B+
Retailer 13
-
$3,081 USD
View
Retailer 14
-
$4,233 USD
View
Price last confirmed 68 days ago
Most Expensive
B
NZ Jewellers
c08defea-25bc-47ff-9964-6d6a7936f7ab · Nov 5
$4,301 USD
View
14 more retailers have this diamond
Prices start from $1,606 USDSave up to $2,695 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
1.31ct Oval
$1,606 USD