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Round|Natural|GIA

1.31ct M SI2 Round Natural Diamond

VG • M/SI2 • GIA 6372528755

Certificate GIA 6372528755

Diamond specifications and retailer prices

From $2,176 AUD
As of November 1, 2026
Save $4,096 AUD (65%) vs most expensive(unlock to see where)
11 retailers carry this diamond
Most expensive: $6,271 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 SI2 clarity (slightly-included), with a very-good cut grade and certified by GIA 6372528755. Listed at 11 retailers as of November 1, 2026, with prices from $2,176 to $6,271, a $4,096 spread on the same certified stone. NZ Jewellers lists it at $6,271. 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
M
Colour
SI2
Clarity
Very Good
Cut

Specifications

CutVery Good
PolishExcellent
SymmetryVery Good
FluorescenceFaint
OriginNatural
Grading LabGIA
CertificateGIA 6372528755
Dimensions6.86 × 6.79 × 4.39 mm
L/W Ratio1.01
Top View
6.86 mm6.79 mm1.31 ctM / SI2
OriginNatural
CutVery Good
PolishExcellent
SymmetryVery Good
FluorescenceFaint
CertificateGIA 6372528755
Side View
Table 57.0%CrownGirdlePavilionCulet: NoneDepth 64.3%

Caratlytics Score

How it works →
B+
Very Good
Strong quality and value balance
Unlock full score analysis
See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 1
Current: $6,271 AUD|Low: $2,138 AUD|High: $6,271 AUD|Avg: $3,035 AUD
NZ Jewellers
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
November 6, 2026
Retailer 5$2,176 AUD
Retailer 11$2,343 AUD
Retailer 2$2,561 AUD
Retailer 6$2,571 AUD
Retailer 8$2,571 AUD
Retailer 7$2,690 AUD
Retailer 10$2,766 AUD
Retailer 3$2,800 AUD
Retailer 9$2,967 AUD
Retailer 4$3,484 AUD
NZ Jewellers$6,271 AUD

32 data points across 11 retailers

11 retailers$2,176 AUD to $6,271 AUD

B+
Cheapest Retailer
-
$2,176 AUD
B+
Retailer 2
-
$2,343 AUD
View
B+
Retailer 3
-
$2,561 AUD
View
B+
Retailer 4
-
$2,571 AUD
View
Retailer 5
-
$2,571 AUD
View
Price last confirmed 8 days ago
B+
Retailer 6
-
$2,690 AUD
View
B+
Retailer 7
-
$2,766 AUD
View
B+
Retailer 8
-
$2,800 AUD
View
B+
Retailer 9
-
$2,967 AUD
View
B
Retailer 10
-
$3,484 AUD
View
Most Expensive
C
NZ Jewellers
acaf5e79-1f5f-407d-b1d3-eacab6ed86dc · Nov 5
$6,271 AUD
$4,390 USD
View
10 more retailers have this diamond
Prices start from $2,176 AUDSave up to $4,096 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.

B+
1.31ct Round
$2,176 AUD