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Radiant|Natural|GIA

1.00ct D SI1 Radiant Natural Diamond

VG • D/SI1 • GIA 1455156310

Certificate GIA 1455156310

Diamond specifications and retailer prices

From £2,667 GBP
$3,573 USD
As of October 30, 2026
Save £2,614 GBP (49%) vs most expensive(unlock to see where)
16 retailers carry this diamond
Most expensive: £5,280 GBP at NZ Jewellers · As of October 30, 2026
View at NZ Jewellers

About this 1ct natural radiant diamond

This 1ct 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 1455156310. Listed at 16 retailers as of October 30, 2026, with prices from £2,667 to £5,280, a £2,614 spread on the same certified stone. NZ Jewellers lists it at £5,280. 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

1.00
Carat
D
Colour
SI1
Clarity
Very Good
Cut (retailer stated)

Specifications

Cut (retailer stated)Very Good
PolishExcellent
SymmetryVery Good
FluorescenceFaint
OriginNatural
Grading LabGIA
CertificateGIA 1455156310
Dimensions6.39 × 5.27 × 3.47 mm
L/W Ratio1.21
Girdle conditionPolished
Culet sizeNone
Key to symbols
Crystal, Feather, Cavity, Pinpoint, Natural
Top View
6.39 mm5.27 mm1.00 ctD / SI1
OriginNatural
CutVery Good
PolishExcellent
SymmetryVery Good
FluorescenceFaint
CertificateGIA 1455156310
Side View
Table 74.0%CrownGirdle: THK-VTKPavilionCulet: NoneDepth 65.8%

Caratlytics Score

How it works →
B+
Very Good
Strong quality and value balance
Unlock full score analysis
See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Oct 30
Current: £2,886 GBP|Low: £2,735 GBP|High: £5,006 GBP|Avg: £3,390 GBP|-1.2%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
November 1, 2026
Retailer 6£2,735 GBP
Retailer 1£2,886 GBP
Retailer 8£3,031 GBP
Retailer 3£3,075 GBP
Retailer 7£3,250 GBP
Retailer 5£3,431 GBP
Retailer 4£3,725 GBP
Retailer 2£4,947 GBP

37 data points across 8 retailers

16 retailers£2,667 GBP to £5,280 GBP

B+
Cheapest Retailer
-
£2,667 GBP
$3,573 USD
B+
Retailer 2
-
£2,735 GBP
$3,665 USD
View
B+
Retailer 3
-
£2,886 GBP
View
B+
Retailer 4
-
£2,888 GBP
$3,870 USD
View
B
Retailer 5
-
£3,031 GBP
$4,061 USD
View
B
Retailer 6
-
£3,031 GBP
$4,061 USD
View
B
Retailer 7
-
£3,031 GBP
$4,061 USD
View
B
Retailer 8
-
£3,075 GBP
View
B
Retailer 9
-
£3,141 GBP
$4,208 USD
View
B
Retailer 10
-
£3,147 GBP
$4,217 USD
View
Retailer 11
-
£3,250 GBP
A$6,699 AUD
View
Price last confirmed 28 days ago
B
Retailer 12
-
£3,431 GBP
€4,378 EUR
View
B
Retailer 13
-
£3,497 GBP
$4,686 USD
View
B
Retailer 14
-
£3,725 GBP
ZAR 80,642 ZAR
View
B
Retailer 15
-
£4,947 GBP
View
Most Expensive
B
NZ Jewellers
daf17a90-33e0-4434-84b4-9175f08594d9 · Oct 30
£5,280 GBP
$7,075 USD
View
15 more retailers have this diamond
Prices start from £2,667 GBPSave up to £2,614 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.

B+
1.00ct Radiant
£2,667 GBP