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Oval|Natural|GIA

1.31ct D SI2 Oval Natural Diamond

EX • D/SI2 • GIA 6541759039

Certificate GIA 6541759039

Diamond specifications and retailer prices

From $4,027 AUD
HK$22,100 HKD
As of October 31, 2026
Save $5,002 AUD (55%) vs most expensive(unlock to see where)
13 retailers carry this diamond
Most expensive: $9,938 AUD at NZ Jewellers · As of September 25, 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 D colour (colourless) and SI2 clarity (slightly-included), with a top-tier cut grade stated by the retailer rather than the lab and certified by GIA 6541759039. Listed at 13 retailers as of October 29, 2026, with a 124% spread between the cheapest and most expensive listing. That is exactly the kind of price-discovery gap Carat Hunter was built to surface. 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
D
Colour
SI2
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryExcellent
FluorescenceMedium
Pavilion angle40°
OriginNatural
Grading LabGIA
CertificateGIA 6541759039
Dimensions8.39 × 6.08 × 3.88 mm
L/W Ratio1.38
Top View
8.39 mm6.08 mm1.31 ctD / SI2
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceMedium
CertificateGIA 6541759039
Side View
Table 63.0%CrownGirdle: STK-THKPavilion 40°Culet: NoneDepth 63.9%

Caratlytics Score

How it works →
A
Excellent
Excellent quality and great value
Unlock full score analysis
See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Oct 31
Current: $4,467 AUD|Low: $4,009 AUD|High: $9,655 AUD|Avg: $5,584 AUD|+3.7%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
October 31, 2026
Retailer 6$4,027 AUD
Retailer 12$4,255 AUD
Retailer 11$4,276 AUD
Retailer 1$4,467 AUD
Retailer 5$4,849 AUD
Retailer 2$4,878 AUD
Retailer 4$4,983 AUD
Retailer 7$5,177 AUD
Retailer 9$5,325 AUD
Retailer 8$6,203 AUD
Retailer 10$8,161 AUD
Retailer 3$9,029 AUD

30 data points across 12 retailers

13 retailers$4,027 AUD to $9,029 AUD

A
Cheapest Retailer
-
$4,027 AUD
HK$22,100 HKD
A
Retailer 2
-
$4,255 AUD
$2,989 USD
View
A
Retailer 3
-
$4,276 AUD
$3,004 USD
View
A
Retailer 4
-
$4,467 AUD
$3,138 USD
View
Final sale: no returns
A
Retailer 5
-
$4,849 AUD
$3,406 USD
View
A
Retailer 6
-
$4,878 AUD
$3,427 USD
View
A
Retailer 7
-
$4,983 AUD
$3,500 USD
View
A
Retailer 8
-
$5,177 AUD
£2,863 GBP
View
A
Retailer 9
-
$5,325 AUD
£2,946 GBP
View
A
Retailer 10
-
$6,203 AUD
€4,150 EUR
View
Retailer 11
-
$8,161 AUD
$5,732 USD
View
Price last confirmed 8 days ago
B+
Retailer 12
-
$9,029 AUD
£4,994 GBP
View
Most Expensive
NZ Jewellers
e1132f5b-b64d-42d3-8ea9-114c6e3ab81a · Sep 25
$9,938 AUD
$6,981 USD
View
Price last confirmed 36 days ago
12 more retailers have this diamond
Prices start from $4,027 AUDSave up to $5,002 AUD

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
$4,027 AUD