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Radiant|Natural|GIA

1.01ct D SI1 Radiant Natural Diamond

VG • D/SI1 • GIA 2526170399

Certificate GIA 2526170399

Diamond specifications and retailer prices

From £1,576 GBP
As of November 6, 2026
Save £2,637 GBP (63%) vs most expensive(unlock to see where)
22 retailers carry this diamond
Most expensive: £4,213 GBP at NZ Jewellers · As of November 5, 2026
View at NZ Jewellers

About this 1.01ct natural radiant diamond

This 1.01ct natural radiant sits in the classic one-carat band, graded D colour (colourless) and SI1 clarity (slightly-included), with a very-good cut grade stated by the retailer rather than the lab and certified by GIA 2526170399. Listed at 22 retailers as of November 5, 2026, with prices from £1,576 to £4,213, a £2,637 spread on the same certified stone. NZ Jewellers lists it at £4,213. 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

1.01
Carat
D
Colour
SI1
Clarity
Very Good
Cut (retailer stated)

Specifications

Cut (retailer stated)Very Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle50.75°
Pavilion angle53.27°
OriginNatural
Grading LabGIA
CertificateGIA 2526170399
Dimensions6.40 × 4.93 × 3.42 mm
L/W Ratio1.30
Top View
6.40 mm4.93 mm1.01 ctD / SI1
OriginNatural
CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 2526170399
Side View
Table 67.0%Crown 50.75°Girdle: STK-THKPavilion 53.27°Culet: NoneDepth 69.4%

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: Nov 6
Current: £2,132 GBP|Low: £1,576 GBP|High: £3,550 GBP|Avg: £2,241 GBP|+0.6%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
November 7, 2026
Retailer 2£1,576 GBP
Retailer 8£1,578 GBP
Retailer 3£1,954 GBP
Retailer 9£2,006 GBP
Retailer 1£2,132 GBP
Retailer 4£2,197 GBP
Retailer 6£2,459 GBP
Retailer 5£2,501 GBP
Retailer 7£3,530 GBP

27 data points across 9 retailers

22 retailers£1,576 GBP to £4,213 GBP

A
Cheapest Retailer
-
£1,576 GBP
A
Retailer 2
-
£1,578 GBP
View
A
Retailer 3
-
£1,767 GBP
View
A
Retailer 4
-
£1,804 GBP
View
A
Retailer 5
-
£1,860 GBP
View
Final sale: no returns
A
Retailer 6
-
£1,954 GBP
View
B+
Retailer 7
-
£1,984 GBP
View
B+
Retailer 8
-
£2,006 GBP
View
Retailer 9
-
£2,015 GBP
View
Price last confirmed 9 days ago
B+
Retailer 10
-
£2,015 GBP
View
B+
Retailer 11
-
£2,025 GBP
View
B+
Retailer 12
-
£2,093 GBP
View
B+
Retailer 13
-
£2,120 GBP
View
B+
Retailer 14
-
£2,132 GBP
View
B+
Retailer 15
-
£2,197 GBP
View
Retailer 16
-
£2,257 GBP
View
Price last confirmed 31 days ago
B+
Retailer 17
-
£2,325 GBP
View
B+
Retailer 18
-
£2,459 GBP
View
B+
Retailer 19
-
£2,501 GBP
View
B
Retailer 20
-
£2,971 GBP
View
B
Retailer 21
-
£3,530 GBP
View
Most Expensive
B
NZ Jewellers
a5706e83-78bc-4638-9d92-37f02988524d · Nov 5
£4,213 GBP
$5,639 USD
View
21 more retailers have this diamond
Prices start from £1,576 GBPSave up to £2,637 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 Radiant
£1,576 GBP