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Oval|Natural|IGI

1.31ct K SI1 Oval Natural Diamond

VG • K/SI1 • IGI 628465278

Shape and cutting style on the report: Oval brilliant

Certificate IGI 628465278

Diamond specifications and retailer prices

From $2,289 SGD
As of November 6, 2026
Save $3,291 SGD (59%) vs most expensive(unlock to see where)
12 retailers carry this diamond
Most expensive: $5,580 SGD at MOH London · As of November 4, 2026
View at MOH London

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 628465278. Listed at 12 retailers as of November 4, 2026, with prices from $2,289 to $5,580, a $3,291 spread on the same certified stone. MOH London lists it at $5,580. 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
Colour
SI1
Clarity
Very Good
Cut

Specifications

CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle40.4°
Pavilion angle41.7°
OriginNatural
Grading LabIGI
CertificateIGI 628465278
Dimensions8.46 × 6.03 × 3.90 mm
L/W Ratio1.40
Girdle conditionFaceted
Culet sizePointed
Top View
8.46 mm6.03 mm1.31 ctK / SI1
OriginNatural
CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI 628465278
Side View
Table 62.0%Crown 40.4°Girdle: MED-THKPavilion 41.7°Culet: NoneDepth 64.7%

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 6
Current: $5,580 SGD|Low: $2,289 SGD|High: $5,663 SGD|Avg: $3,543 SGD|-1.5%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
November 6, 2026
Retailer 2$2,289 SGD
Retailer 7$2,884 SGD
Retailer 8$2,980 SGD
Retailer 3$3,098 SGD
Retailer 4$3,439 SGD
Retailer 6$3,595 SGD
Retailer 5$3,897 SGD
MOH London$5,580 SGD

27 data points across 8 retailers

12 retailers$2,289 SGD to $5,580 SGD

A
Cheapest Retailer
-
$2,289 SGD
B+
Retailer 2
-
$2,884 SGD
View
B+
Retailer 3
-
$2,884 SGD
View
B+
Retailer 4
-
$2,980 SGD
View
B+
Retailer 5
-
$3,098 SGD
View
Retailer 6
-
$3,194 SGD
View
Price last confirmed 8 days ago
B+
Retailer 7
-
$3,373 SGD
View
B+
Retailer 8
-
$3,439 SGD
View
B+
Retailer 9
-
$3,595 SGD
View
B+
Retailer 10
-
$3,685 SGD
View
B+
Retailer 11
-
$3,897 SGD
View
Most Expensive
B
MOH London
E97CBE54D · Nov 4
$5,580 SGD
£3,428 GBP
View
11 more retailers have this diamond
Prices start from $2,289 SGDSave up to $3,291 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
1.31ct Oval
$2,289 SGD