Round|Natural|GIA

1.31ct M SI2 Round Natural Diamond

VG • M/SI2 • GIA 6372528755

Certificate GIA 6372528755

Diamond specifications and retailer prices

From $1,523 USD
As of November 1, 2026
Save $2,867 USD (65%) vs most expensive(unlock to see where)
11 retailers carry this diamond
Most expensive: $4,390 USD 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 $1,523 to $4,390, a $2,867 spread on the same certified stone. NZ Jewellers lists it at $4,390. 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
Color
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: $4,390 USD|Low: $1,497 USD|High: $4,390 USD|Avg: $2,125 USD
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$1,523 USD
Retailer 11$1,640 USD
Retailer 2$1,793 USD
Retailer 6$1,800 USD
Retailer 8$1,800 USD
Retailer 7$1,883 USD
Retailer 10$1,936 USD
Retailer 3$1,960 USD
Retailer 9$2,077 USD
Retailer 4$2,439 USD
NZ Jewellers$4,390 USD

32 data points across 11 retailers

11 retailers$1,523 USD to $4,390 USD

B+
Cheapest Retailer
-
$1,523 USD
B+
Retailer 2
-
$1,640 USD
View
B+
Retailer 3
-
$1,793 USD
View
B+
Retailer 4
-
$1,800 USD
View
Retailer 5
-
$1,800 USD
View
Price last confirmed 8 days ago
B+
Retailer 6
-
$1,883 USD
View
B+
Retailer 7
-
$1,936 USD
View
B+
Retailer 8
-
$1,960 USD
View
B+
Retailer 9
-
$2,077 USD
View
B
Retailer 10
-
$2,439 USD
View
Most Expensive
C
NZ Jewellers
acaf5e79-1f5f-407d-b1d3-eacab6ed86dc · Nov 5
$4,390 USD
View
10 more retailers have this diamond
Prices start from $1,523 USDSave up to $2,867 USD

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
$1,523 USD