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Round|Natural|GIA

1.31ct M SI1 Round Natural Diamond

EX • M/SI1 • GIA 7502345420

Certificate GIA 7502345420

Diamond specifications and retailer prices

From $2,368 AUD
As of November 5, 2026
Save $3,971 AUD (63%) vs most expensive(unlock to see where)
11 retailers carry this diamond
Most expensive: $6,340 AUD at NZ Jewellers · As of November 5, 2026
View at NZ Jewellers

About this 1.31ct natural round diamond

This 1.31ct natural round sits in the one-and-a-quarter to one-and-a-half carat band, graded M colour (faint-tinted) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by GIA 7502345420. Listed at 11 retailers as of November 5, 2026, with prices from $2,368 to $6,340, a $3,971 spread on the same certified stone. NZ Jewellers lists it at $6,340. 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
M
Colour
SI1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceFaint
Crown angle35°
Pavilion angle41.4°
OriginNatural
Grading LabGIA
CertificateGIA 7502345420
Dimensions6.94 × 6.99 × 4.34 mm
L/W Ratio1.01
Star length50%
Lower girdle80%
Culet sizeNone
Key to symbols
Cloud, Crystal, Feather, Needle
Top View
6.94 mm6.99 mm1.31 ctM / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceFaint
CertificateGIA 7502345420
Side View
Table 59.0%Crown 35°Girdle: MED-STKPavilion 41.4°Culet: NoneDepth 62.3%

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: $6,340 AUD|Low: $2,368 AUD|High: $6,457 AUD|Avg: $3,240 AUD|-1.8%
NZ Jewellers
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
November 5, 2026
Retailer 10$2,368 AUD
Retailer 4$2,423 AUD
Retailer 5$2,600 AUD
Retailer 9$2,600 AUD
Retailer 7$2,678 AUD
Retailer 6$2,720 AUD
Retailer 8$2,794 AUD
Retailer 2$3,171 AUD
Retailer 11$3,554 AUD
Retailer 3$3,723 AUD
Retailer 12$4,361 AUD
NZ Jewellers$6,340 AUD

15 data points across 12 retailers

11 retailers$2,368 AUD to $6,340 AUD

A
Cheapest Retailer
-
$2,368 AUD
A
Retailer 2
-
$2,600 AUD
View
Retailer 3
-
$2,600 AUD
View
Price last confirmed 8 days ago
Retailer 4
-
$2,647 AUD
View
Price last confirmed 60 days ago
A
Retailer 5
-
$2,678 AUD
View
B+
Retailer 6
-
$2,720 AUD
View
B+
Retailer 7
-
$2,794 AUD
View
Retailer 8
-
$2,998 AUD
View
Price last confirmed 68 days ago
B+
Retailer 9
-
$3,171 AUD
View
Retailer 10
-
$6,340 AUD
View
Price last confirmed 66 days ago
Most Expensive
C
NZ Jewellers
e160ed7e-f912-4ae8-aaa7-d6b85ca2b835 · Nov 5
$6,340 AUD
$4,438 USD
View
10 more retailers have this diamond
Prices start from $2,368 AUDSave up to $3,971 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 Round
$2,368 AUD