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Radiant|Natural|IGI

1.00ct H SI1 Radiant Natural Diamond

VG • H/SI1 • IGI 784626893

Shape and cutting style on the report: Cut cornered rectangular modified brilliant

Certificate IGI 784626893

Diamond specifications and retailer prices

From £1,076 GBP
As of November 6, 2026
Save £2,447 GBP (69%) vs most expensive(unlock to see where)
17 retailers carry this diamond
Most expensive: £3,523 GBP at NZ Jewellers · As of November 5, 2026
View at NZ Jewellers

About this 1ct natural radiant diamond

This 1ct natural radiant sits in the classic one-carat band, graded H colour (near-colourless) and SI1 clarity (slightly-included), with a very-good cut grade and certified by IGI 784626893. Listed at 17 retailers as of November 5, 2026, with prices from £1,076 to £3,523, a £2,447 spread on the same certified stone. NZ Jewellers lists it at £3,523. 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
H
Colour
SI1
Clarity
Very Good
Cut

Specifications

CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle46.1°
Pavilion angle37.4°
OriginNatural
Grading LabIGI
CertificateIGI 784626893
Dimensions6.91 × 4.98 × 3.45 mm
L/W Ratio1.39
Culet sizePointed
Top View
6.91 mm4.98 mm1.00 ctH / SI1
OriginNatural
CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI 784626893
Side View
Table 70.0%Crown 46.1°Girdle: MED-STKPavilion 37.4°Culet: NoneDepth 69.3%

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: £3,523 GBP|Low: £1,076 GBP|High: £3,622 GBP|Avg: £1,707 GBP|-2.7%
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
November 6, 2026
Retailer 2£1,076 GBP
Retailer 4£1,305 GBP
Retailer 7£1,333 GBP
Retailer 3£1,367 GBP
Retailer 9£1,401 GBP
Retailer 15£1,444 GBP
Retailer 14£1,476 GBP
Retailer 8£1,511 GBP
Retailer 5£1,547 GBP
Retailer 6£1,593 GBP
Retailer 11£1,595 GBP
Retailer 16£1,667 GBP
Retailer 12£1,762 GBP
Retailer 10£1,837 GBP
Retailer 13£2,524 GBP
NZ Jewellers£3,523 GBP

22 data points across 16 retailers

17 retailers£1,076 GBP to £3,523 GBP

A
Cheapest Retailer
-
£1,076 GBP
A
Retailer 2
-
£1,305 GBP
View
B+
Retailer 3
-
£1,333 GBP
View
Final sale: no returns
A
Retailer 4
-
£1,367 GBP
View
A
Retailer 5
-
£1,401 GBP
View
B+
Retailer 6
-
£1,444 GBP
View
B+
Retailer 7
-
£1,476 GBP
View
Retailer 8
-
£1,485 GBP
View
Price last confirmed 22 days ago
B+
Retailer 9
-
£1,511 GBP
View
B+
Retailer 10
-
£1,547 GBP
View
B+
Retailer 11
-
£1,593 GBP
View
B+
Retailer 12
-
£1,595 GBP
View
B+
Retailer 13
-
£1,667 GBP
View
B+
Retailer 14
-
£1,762 GBP
View
B+
Retailer 15
-
£1,837 GBP
View
B
Retailer 16
-
£2,524 GBP
View
Most Expensive
C
NZ Jewellers
1ede4219-32d5-4796-9b54-3db29f3e9f77 · Nov 5
£3,523 GBP
$4,715 USD
View
16 more retailers have this diamond
Prices start from £1,076 GBPSave up to £2,447 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
£1,076 GBP