CaratHunter
Plans
Round|Natural|GIA

1.03ct J SI1 Round Natural Diamond

EX • J/SI1 • GIA 2556885335

Certificate GIA 2556885335

Diamond specifications and retailer prices

From £1,122 GBP
As of November 5, 2026
Save £1,022 GBP (48%) vs most expensive(unlock to see where)
13 retailers carry this diamond
Most expensive: £2,144 GBP at Wholesale Diamonds Direct · As of November 4, 2026
View at Wholesale Diamonds Direct

About this 1.03ct natural round diamond

This 1.03ct natural round sits in the classic one-carat band, graded J colour (near-colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by GIA 2556885335. Listed at 13 retailers as of November 4, 2026, with prices from £1,122 to £2,144, a £1,022 spread on the same certified stone. Wholesale Diamonds Direct lists it at £2,144. SI-grade stones are eye-clean roughly 60 to 70% of the time at this carat range. Check the inclusion plot on the cert and ask the retailer for high-resolution video before buying.

The 4Cs

1.03
Carat
J
Colour
SI1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle33.5°
Pavilion angle41°
OriginNatural
Grading LabGIA
CertificateGIA 2556885335
Dimensions6.51 × 6.53 × 3.99 mm
L/W Ratio1.00
Culet sizeNone
Top View
6.51 mm6.53 mm1.03 ctJ / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 2556885335
Side View
Table 57.0%Crown 33.5°Girdle: MED-STKPavilion 41°Culet: NoneDepth 61.2%

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: Nov 5
Current: £1,644 GBP|Low: £1,116 GBP|High: £2,206 GBP|Avg: £1,609 GBP|-3.4%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Wholesale Diamonds Direct
November 6, 2026
Retailer 4£1,122 GBP
Retailer 9£1,299 GBP
Retailer 10£1,311 GBP
Retailer 6£1,426 GBP
Retailer 3£1,427 GBP
Retailer 11£1,569 GBP
Retailer 1£1,644 GBP
Retailer 7£1,669 GBP
Retailer 2£1,701 GBP
Retailer 5£1,831 GBP
Retailer 8£1,999 GBP
Wholesale Diamonds Direct£2,144 GBP

37 data points across 12 retailers

13 retailers£1,122 GBP to £2,144 GBP

A
Cheapest Retailer
-
£1,122 GBP
A
Retailer 2
-
£1,299 GBP
View
A
Retailer 3
-
£1,311 GBP
View
B+
Retailer 4
-
£1,375 GBP
View
B+
Retailer 5
-
£1,426 GBP
View
B+
Retailer 6
-
£1,427 GBP
View
B+
Retailer 7
-
£1,569 GBP
View
B+
Retailer 8
-
£1,644 GBP
View
B+
Retailer 9
-
£1,669 GBP
View
B+
Retailer 10
-
£1,701 GBP
View
B
Retailer 11
-
£1,831 GBP
View
B
Retailer 12
-
£1,999 GBP
View
Most Expensive
B
Wholesale Diamonds Direct
592462622 · Nov 4
£2,144 GBP
$2,885 USD
View
12 more retailers have this diamond
Prices start from £1,122 GBPSave up to £1,022 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
1.03ct Round
£1,122 GBP