CaratHunter
Plans
Round|Natural|GIA

1.25ct J SI2 Round Natural Diamond

VG • J/SI2 • GIA 6415581706

Certificate GIA 6415581706

Diamond specifications and retailer prices

From £1,193 GBP
$1,599 USD
As of October 31, 2026
Save £1,339 GBP (53%) vs most expensive(unlock to see where)
10 retailers carry this diamond
Most expensive: £2,533 GBP 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 £1,193 to £2,533, a £1,339 spread on the same certified stone. MOH London lists it at £2,533. 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: £2,533 GBP|Low: £1,193 GBP|High: £2,679 GBP|Avg: £1,722 GBP|-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£1,193 GBP
Retailer 11£1,339 GBP
Retailer 4£1,464 GBP
Retailer 7£1,478 GBP
Retailer 6£1,519 GBP
Retailer 8£1,567 GBP
Retailer 9£1,597 GBP
Retailer 10£1,649 GBP
Retailer 12£1,797 GBP
Retailer 2£1,966 GBP
Retailer 3£2,084 GBP
MOH London£2,533 GBP

30 data points across 12 retailers

10 retailers£1,193 GBP to £2,533 GBP

A
Cheapest Retailer
-
£1,193 GBP
$1,599 USD
B+
Retailer 2
-
£1,339 GBP
$1,794 USD
View
B+
Retailer 3
-
£1,478 GBP
$1,981 USD
View
B+
Retailer 4
-
£1,519 GBP
$2,036 USD
View
B+
Retailer 5
-
£1,567 GBP
$2,100 USD
View
B+
Retailer 6
-
£1,597 GBP
$2,140 USD
View
B+
Retailer 7
-
£1,649 GBP
$2,210 USD
View
B+
Retailer 8
-
£1,966 GBP
€2,509 EUR
View
B
Retailer 9
-
£2,084 GBP
€2,660 EUR
View
Most Expensive
B
MOH London
FB563D7B7 · Nov 1
£2,533 GBP
View
9 more retailers have this diamond
Prices start from £1,193 GBPSave up to £1,339 GBP

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
£1,193 GBP