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Oval|Natural|GIA

1.31ct K SI1 Oval Natural Diamond

EX • K/SI1 • GIA 6425979052

Certificate GIA 6425979052

Diamond specifications and retailer prices

From $2,967 SGD
As of November 6, 2026
Save $4,179 SGD (58%) vs most expensive(unlock to see where)
18 retailers carry this diamond
Most expensive: $7,146 SGD 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 top-tier cut grade stated by the retailer rather than the lab and certified by GIA 6425979052. Listed at 18 retailers as of November 5, 2026, with prices from $2,967 to $7,146, a $4,179 spread on the same certified stone. NZ Jewellers lists it at $7,146. SI-grade stones are eye-clean roughly 60 to 70% of the time at this carat range. Check the inclusion plot on the cert and ask the retailer for high-resolution video before buying.

The 4Cs

1.31
Carat
K
Colour
SI1
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 6425979052
Dimensions8.22 × 6.06 × 3.90 mm
L/W Ratio1.36
Top View
8.22 mm6.06 mm1.31 ctK / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 6425979052
Side View
Table 58.0%CrownGirdle: STK-VTKPavilionCulet: NoneDepth 64.2%

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: Nov 6
Current: $3,833 SGD|Low: $2,967 SGD|High: $6,941 SGD|Avg: $4,396 SGD|-1.0%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
November 6, 2026
Retailer 2$2,967 SGD
Retailer 8$3,018 SGD
Retailer 7$3,727 SGD
Retailer 1$3,833 SGD
Retailer 9$3,838 SGD
Retailer 3$4,219 SGD
Retailer 6$4,801 SGD
Retailer 4$5,006 SGD
Retailer 5$6,840 SGD

32 data points across 9 retailers

18 retailers$2,967 SGD to $7,146 SGD

A
Cheapest Retailer
-
$2,967 SGD
A
Retailer 2
-
$3,018 SGD
View
Retailer 3
-
$3,723 SGD
View
Price last confirmed 18 days ago
B+
Retailer 4
-
$3,727 SGD
View
B+
Retailer 5
-
$3,833 SGD
View
B+
Retailer 6
-
$3,838 SGD
View
Retailer 7
-
$4,102 SGD
View
Price last confirmed 8 days ago
B+
Retailer 8
-
$4,102 SGD
View
B+
Retailer 9
-
$4,191 SGD
View
B+
Retailer 10
-
$4,219 SGD
View
B
Retailer 11
-
$4,260 SGD
View
B
Retailer 12
-
$4,286 SGD
View
B
Retailer 13
-
$4,733 SGD
View
B+
Retailer 14
-
$4,801 SGD
View
B
Retailer 15
-
$5,006 SGD
View
B
Retailer 16
-
$5,392 SGD
View
B
Retailer 17
-
$6,840 SGD
View
Most Expensive
B
NZ Jewellers
de510069-ca62-4433-affb-0ee35ed7147d · Nov 5
$7,146 SGD
$5,576 USD
View
17 more retailers have this diamond
Prices start from $2,967 SGDSave up to $4,179 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
$2,967 SGD