Round|Natural|GIA

1.25ct J SI2 Round Natural Diamond

VG • J/SI2 • GIA 6415581706

Certificate GIA 6415581706

Diamond specifications and retailer prices

From $1,599 USD
As of October 31, 2026
Save $1,890 USD (54%) vs most expensive(unlock to see where)
10 retailers carry this diamond
Most expensive: $3,489 USD at MOH London · As of October 29, 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 29, 2026, with prices from $1,599 to $3,489, a $1,890 spread on the same certified stone. MOH London lists it at $3,489. 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
Color
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: $3,489 USD|Low: $1,599 USD|High: $3,589 USD|Avg: $2,309 USD|-1.8%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
October 31, 2026
Retailer 2$1,599 USD
Retailer 11$1,794 USD
Retailer 4$1,961 USD
Retailer 6$1,981 USD
Retailer 5$2,036 USD
Retailer 7$2,100 USD
Retailer 9$2,140 USD
Retailer 10$2,210 USD
Retailer 12$2,408 USD
Retailer 8$2,705 USD
Retailer 3$2,793 USD
MOH London$3,489 USD

29 data points across 12 retailers

10 retailers$1,599 USD to $3,489 USD

A
Cheapest Retailer
-
$1,599 USD
B+
Retailer 2
-
$1,794 USD
View
B+
Retailer 3
-
$1,981 USD
View
B+
Retailer 4
-
$2,036 USD
View
B+
Retailer 5
-
$2,100 USD
View
B+
Retailer 6
-
$2,140 USD
View
B+
Retailer 7
-
$2,210 USD
View
B+
Retailer 8
-
$2,705 USD
€2,576 EUR
View
B
Retailer 9
-
$2,793 USD
€2,660 EUR
View
Most Expensive
B
MOH London
FB563D7B7 · Oct 29
$3,489 USD
£2,747 GBP
View
9 more retailers have this diamond
Prices start from $1,599 USDSave up to $1,890 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.

A
1.25ct Round
$1,599 USD