CaratHunter
Plans
Round|Natural|GIA

1.01ct J SI2 Round Natural Diamond

EX • J/SI2 • GIA 5556962801

Certificate GIA 5556962801

Diamond specifications and retailer prices

From £1,051 GBP
HK$11,000 HKD
As of October 31, 2026
Save £2,326 GBP (69%) vs most expensive(unlock to see where)
22 retailers carry this diamond
Most expensive: £3,376 GBP at NZ Jewellers · As of October 30, 2026
View at NZ Jewellers

About this 1.01ct natural round diamond

This 1.01ct natural round sits in the classic one-carat band, graded J colour (near-colourless) and SI2 clarity (slightly-included), with a top-tier cut grade and certified by GIA 5556962801. Listed at 22 retailers as of October 30, 2026, with prices from £1,051 to £3,376, a £2,326 spread on the same certified stone. NZ Jewellers lists it at £3,376. 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

1.01
Carat
J
Colour
SI2
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle33°
Pavilion angle41.6°
OriginNatural
Grading LabGIA
CertificateGIA 5556962801
Dimensions6.46 × 6.42 × 3.93 mm
L/W Ratio1.01
Girdle conditionFaceted
Culet sizeNone
Top View
6.46 mm6.42 mm1.01 ctJ / SI2
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 5556962801
Side View
Table 62.0%Crown 33°Girdle: MED-STKPavilion 41.6°Culet: NDepth 61.1%

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: £3,376 GBP|Low: £981 GBP|High: £3,376 GBP|Avg: £1,454 GBP|+4.0%
NZ Jewellers
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
Retailer 13
Retailer 14
Retailer 15
Retailer 16
Retailer 17
Retailer 18
Retailer 19
Retailer 20
Retailer 21
November 1, 2026
Retailer 18£1,051 GBP
Retailer 14£1,075 GBP
Retailer 7£1,142 GBP
Retailer 5£1,158 GBP
Retailer 3£1,175 GBP
Retailer 16£1,188 GBP
Retailer 4£1,193 GBP
Retailer 11£1,207 GBP
Retailer 15£1,254 GBP
Retailer 12£1,262 GBP
Retailer 9£1,336 GBP
Retailer 19£1,389 GBP
Retailer 20£1,447 GBP
Retailer 6£1,470 GBP
Retailer 8£1,470 GBP
Retailer 13£1,509 GBP
Retailer 10£1,523 GBP
Retailer 17£1,686 GBP
Retailer 21£1,767 GBP
Retailer 2£2,426 GBP
NZ Jewellers£3,376 GBP

30 data points across 21 retailers

22 retailers£1,051 GBP to £3,376 GBP

A
Cheapest Retailer
-
£1,051 GBP
HK$11,000 HKD
Retailer 2
-
£1,075 GBP
$1,440 USD
View
Price last confirmed 12 days ago
A
Retailer 3
-
£1,142 GBP
$1,530 USD
View
B+
Retailer 4
-
£1,158 GBP
$1,551 USD
View
Final sale: no returns
A
Retailer 5
-
£1,175 GBP
$1,575 USD
View
A
Retailer 6
-
£1,188 GBP
$1,592 USD
View
A
Retailer 7
-
£1,193 GBP
$1,598 USD
View
A
Retailer 8
-
£1,207 GBP
$1,617 USD
View
B+
Retailer 9
-
£1,254 GBP
$1,680 USD
View
B+
Retailer 10
-
£1,262 GBP
$1,691 USD
View
B+
Retailer 11
-
£1,336 GBP
View
B+
Retailer 12
-
£1,389 GBP
$1,861 USD
View
B+
Retailer 13
-
£1,447 GBP
$1,939 USD
View
B+
Retailer 14
-
£1,470 GBP
$1,970 USD
View
B+
Retailer 15
-
£1,470 GBP
$1,970 USD
View
B+
Retailer 16
-
£1,509 GBP
View
B+
Retailer 17
-
£1,523 GBP
$2,040 USD
View
B
Retailer 18
-
£1,686 GBP
$2,259 USD
View
B
Retailer 19
-
£1,767 GBP
€2,255 EUR
View
B
Retailer 20
-
£2,426 GBP
View
Retailer 21
-
£2,993 GBP
$4,010 USD
View
Price last confirmed 41 days ago
Most Expensive
C
NZ Jewellers
79555559-5705-49a1-8b5d-eb0fc5316137 · Oct 30
£3,376 GBP
$4,524 USD
View
21 more retailers have this diamond
Prices start from £1,051 GBPSave up to £2,326 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
1.01ct Round
£1,051 GBP