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Radiant|Natural|GIA

1.01ct D SI2 Radiant Natural Diamond

EX • D/SI2 • GIA 7551390959

Certificate GIA 7551390959

Diamond specifications and retailer prices

From £1,290 GBP
$1,729 USD
As of October 31, 2026
Save £2,122 GBP (62%) vs most expensive(unlock to see where)
11 retailers carry this diamond
Most expensive: £3,412 GBP at NZ Jewellers · As of October 30, 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 SI2 clarity (slightly-included), with a top-tier cut grade stated by the retailer rather than the lab and certified by GIA 7551390959. Listed at 11 retailers as of October 30, 2026, with prices from £1,290 to £3,412, a £2,122 spread on the same certified stone. NZ Jewellers lists it at £3,412. 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
D
Colour
SI2
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryExcellent
FluorescenceMedium
OriginNatural
Grading LabGIA
CertificateGIA 7551390959
Dimensions6.40 × 4.88 × 3.44 mm
L/W Ratio1.31
Culet sizeNone
Key to symbols
Crystal, Feather, Cavity, Needle, Natural
Top View
6.40 mm4.88 mm1.01 ctD / SI2
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceMedium
CertificateGIA 7551390959
Side View
Table 64.0%CrownGirdlePavilionCulet: NoneDepth 70.5%

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: £3,412 GBP|Low: £1,184 GBP|High: £3,412 GBP|Avg: £1,782 GBP
NZ Jewellers
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
November 1, 2026
Retailer 3£1,290 GBP
Retailer 2£1,383 GBP
Retailer 7£1,399 GBP
Retailer 10£1,399 GBP
Retailer 11£1,464 GBP
Retailer 5£1,521 GBP
Retailer 8£1,543 GBP
Retailer 9£1,614 GBP
Retailer 6£1,911 GBP
Retailer 4£2,451 GBP
NZ Jewellers£3,412 GBP

37 data points across 11 retailers

11 retailers£1,290 GBP to £3,412 GBP

A
Cheapest Retailer
-
£1,290 GBP
$1,729 USD
Final sale: no returns
A
Retailer 2
-
£1,383 GBP
View
A
Retailer 3
-
£1,399 GBP
$1,874 USD
View
A
Retailer 4
-
£1,399 GBP
$1,874 USD
View
A
Retailer 5
-
£1,464 GBP
$1,961 USD
View
A
Retailer 6
-
£1,521 GBP
View
A
Retailer 7
-
£1,543 GBP
View
A
Retailer 8
-
£1,614 GBP
$2,163 USD
View
A
Retailer 9
-
£1,911 GBP
€2,438 EUR
View
B+
Retailer 10
-
£2,451 GBP
View
Most Expensive
B
NZ Jewellers
36a6cde6-8e4e-41d4-b9d4-50d00e084c9e · Oct 30
£3,412 GBP
$4,572 USD
View
10 more retailers have this diamond
Prices start from £1,290 GBPSave up to £2,122 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
£1,290 GBP