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Radiant|Natural|GIA

1.00ct D SI1 Radiant Natural Diamond

EX • D/SI1 • GIA 7551690924

Certificate GIA 7551690924

Diamond specifications and retailer prices

From £1,717 GBP
$2,300 USD
As of October 31, 2026
Save £1,991 GBP (54%) vs most expensive(unlock to see where)
10 retailers carry this diamond
Most expensive: £3,708 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 top-tier cut grade stated by the retailer rather than the lab and certified by GIA 7551690924. Listed at 10 retailers as of October 30, 2026, with prices from £1,717 to £3,708, a £1,991 spread on the same certified stone. NZ Jewellers lists it at £3,708. 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

1.00
Carat
D
Colour
SI1
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishVery Good
SymmetryExcellent
FluorescenceFaint
Crown angle52.4°
Pavilion angle37.24°
OriginNatural
Grading LabGIA
CertificateGIA 7551690924
Dimensions6.42 × 5.03 × 3.51 mm
L/W Ratio1.28
Girdle conditionThick
Key to symbols
Crystal, Feather, Indented Natural, Natural
Top View
6.42 mm5.03 mm1.00 ctD / SI1
OriginNatural
CutExcellent
PolishVery Good
SymmetryExcellent
FluorescenceFaint
CertificateGIA 7551690924
Side View
Table 72.0%Crown 52.4°GirdlePavilion 37.24°Culet: NoneDepth 69.8%

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: £3,708 GBP|Low: £1,717 GBP|High: £3,782 GBP|Avg: £2,241 GBP|-2.0%
NZ Jewellers
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
October 31, 2026
Retailer 8£1,717 GBP
Retailer 4£1,735 GBP
Retailer 9£1,773 GBP
Retailer 2£1,836 GBP
Retailer 7£1,836 GBP
Retailer 5£1,855 GBP
Retailer 3£1,990 GBP
Retailer 10£2,208 GBP
Retailer 6£3,124 GBP
NZ Jewellers£3,708 GBP

40 data points across 10 retailers

10 retailers£1,717 GBP to £3,708 GBP

A
Cheapest Retailer
-
£1,717 GBP
$2,300 USD
A
Retailer 2
-
£1,735 GBP
View
A
Retailer 3
-
£1,773 GBP
$2,376 USD
View
A
Retailer 4
-
£1,836 GBP
$2,460 USD
View
A
Retailer 5
-
£1,836 GBP
$2,460 USD
View
A
Retailer 6
-
£1,855 GBP
$2,486 USD
View
A
Retailer 7
-
£1,990 GBP
$2,666 USD
View
Retailer 8
-
£2,208 GBP
A$4,550 AUD
View
Price last confirmed 24 days ago
B
Retailer 9
-
£3,124 GBP
View
Most Expensive
B
NZ Jewellers
f3472181-81b5-4e8a-88e8-6803750a45cb · Oct 30
£3,708 GBP
$4,968 USD
View
9 more retailers have this diamond
Prices start from £1,717 GBPSave up to £1,991 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
1.00ct Radiant
£1,717 GBP