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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 $2,709 NZD
As of November 1, 2026
Save $5,100 NZD (65%) vs most expensive(unlock to see where)
11 retailers carry this diamond
Most expensive: $7,809 NZD 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 $2,709 to $7,809, a $5,100 spread on the same certified stone. NZ Jewellers lists it at $7,809. 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: $7,809 NZD|Low: $2,663 NZD|High: $7,809 NZD|Avg: $3,780 NZD
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$2,709 NZD
Retailer 11$2,917 NZD
Retailer 2$3,190 NZD
Retailer 6$3,202 NZD
Retailer 8$3,202 NZD
Retailer 7$3,350 NZD
Retailer 10$3,444 NZD
Retailer 3$3,487 NZD
Retailer 9$3,695 NZD
Retailer 4$4,339 NZD
NZ Jewellers$7,809 NZD

32 data points across 11 retailers

11 retailers$2,709 NZD to $7,809 NZD

B+
Cheapest Retailer
-
$2,709 NZD
B+
Retailer 2
-
$2,917 NZD
View
B+
Retailer 3
-
$3,190 NZD
View
B+
Retailer 4
-
$3,202 NZD
View
Retailer 5
-
$3,202 NZD
View
Price last confirmed 8 days ago
B+
Retailer 6
-
$3,350 NZD
View
B+
Retailer 7
-
$3,444 NZD
View
B+
Retailer 8
-
$3,487 NZD
View
B+
Retailer 9
-
$3,695 NZD
View
B
Retailer 10
-
$4,339 NZD
View
Most Expensive
C
NZ Jewellers
acaf5e79-1f5f-407d-b1d3-eacab6ed86dc · Nov 5
$7,809 NZD
$4,390 USD
View
10 more retailers have this diamond
Prices start from $2,709 NZDSave up to $5,100 NZD

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
$2,709 NZD