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Round|Natural|GIA

1.25ct J SI2 Round Natural Diamond

VG • J/SI2 • GIA 6415581706

Certificate GIA 6415581706

Diamond specifications and retailer prices

From $2,276 AUD
$1,599 USD
As of October 31, 2026
Save $2,555 AUD (53%) vs most expensive(unlock to see where)
10 retailers carry this diamond
Most expensive: $4,831 AUD at MOH London · As of November 1, 2026
View at MOH London

About this 1.25ct natural round diamond

This 1.25ct natural round sits in the one-and-a-quarter to one-and-a-half carat band, graded J colour (near-colourless) and SI2 clarity (slightly-included), with a very-good cut grade and certified by GIA 6415581706. Listed at 10 retailers as of October 31, 2026, with prices from $2,276 to $4,831, a $2,555 spread on the same certified stone. MOH London lists it at $4,831. 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

1.25
Carat
J
Colour
SI2
Clarity
Very Good
Cut

Specifications

CutVery Good
PolishVery Good
SymmetryVery Good
FluorescenceMedium
Crown angle37°
Pavilion angle40.6°
OriginNatural
Grading LabGIA
CertificateGIA 6415581706
Dimensions6.71 × 6.63 × 4.30 mm
L/W Ratio1.01
Top View
6.71 mm6.63 mm1.25 ctJ / SI2
OriginNatural
CutVery Good
PolishVery Good
SymmetryVery Good
FluorescenceMedium
CertificateGIA 6415581706
Side View
Table 58.0%Crown 37°Girdle: STK-THKPavilion 40.6°Culet: NoneDepth 64.4%

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: $4,831 AUD|Low: $2,276 AUD|High: $5,109 AUD|Avg: $3,284 AUD|-4.4%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
November 1, 2026
Retailer 5$2,276 AUD
Retailer 11$2,554 AUD
Retailer 4$2,792 AUD
Retailer 7$2,820 AUD
Retailer 6$2,898 AUD
Retailer 8$2,990 AUD
Retailer 9$3,047 AUD
Retailer 10$3,146 AUD
Retailer 12$3,429 AUD
Retailer 2$3,750 AUD
Retailer 3$3,976 AUD
MOH London$4,831 AUD

30 data points across 12 retailers

10 retailers$2,276 AUD to $4,831 AUD

A
Cheapest Retailer
-
$2,276 AUD
$1,599 USD
B+
Retailer 2
-
$2,554 AUD
$1,794 USD
View
B+
Retailer 3
-
$2,820 AUD
$1,981 USD
View
B+
Retailer 4
-
$2,898 AUD
$2,036 USD
View
B+
Retailer 5
-
$2,990 AUD
$2,100 USD
View
B+
Retailer 6
-
$3,047 AUD
$2,140 USD
View
B+
Retailer 7
-
$3,146 AUD
$2,210 USD
View
B+
Retailer 8
-
$3,750 AUD
€2,509 EUR
View
B
Retailer 9
-
$3,976 AUD
€2,660 EUR
View
Most Expensive
B
MOH London
FB563D7B7 · Nov 1
$4,831 AUD
£2,672 GBP
View
9 more retailers have this diamond
Prices start from $2,276 AUDSave up to $2,555 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
1.25ct Round
$2,276 AUD