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Radiant|Natural|GIA

1.59ct I SI1 Radiant Natural Diamond

EX • I/SI1 • GIA 2243013104

Certificate GIA 2243013104

Diamond specifications and retailer prices

From £4,779 GBP
As of November 5, 2026
Save £5,339 GBP (53%) vs most expensive(unlock to see where)
18 retailers carry this diamond
Most expensive: £10,118 GBP at NZ Jewellers · As of November 5, 2026
View at NZ Jewellers

About this 1.59ct natural radiant diamond

This 1.59ct natural radiant sits in the one-and-a-half to two carat band, graded I colour (near-colourless) and SI1 clarity (slightly-included), with a top-tier cut grade stated by the retailer rather than the lab and certified by GIA 2243013104. Listed at 18 retailers as of November 5, 2026, with prices from £4,779 to £10,118, a £5,339 spread on the same certified stone. NZ Jewellers lists it at £10,118. 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

1.59
Carat
I
Colour
SI1
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryVery Good
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 2243013104
Dimensions7.30 × 6.09 × 4.21 mm
L/W Ratio1.20
Girdle conditionPolished
Culet sizeNone
Key to symbols
Crystal, Cloud, Feather, Needle
Top View
7.30 mm6.09 mm1.59 ctI / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryVery Good
FluorescenceNone
CertificateGIA 2243013104
Side View
Table 67.0%CrownGirdle: Very ThickPavilionCulet: NoneDepth 69.1%

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: Nov 5
Current: £5,650 GBP|Low: £4,637 GBP|High: £8,533 GBP|Avg: £6,185 GBP|+0.1%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
November 7, 2026
Retailer 6£5,058 GBP
Retailer 8£5,065 GBP
Retailer 7£5,565 GBP
Retailer 1£5,650 GBP
Retailer 5£5,797 GBP
Retailer 2£6,572 GBP
Retailer 3£7,380 GBP
Retailer 4£8,408 GBP

46 data points across 8 retailers

18 retailers£4,779 GBP to £10,118 GBP

B+
Cheapest Retailer
-
£4,779 GBP
B+
Retailer 2
-
£5,058 GBP
View
Final sale: no returns
Retailer 3
-
£5,059 GBP
View
Price last confirmed 9 days ago
B+
Retailer 4
-
£5,065 GBP
View
B+
Retailer 5
-
£5,101 GBP
View
B+
Retailer 6
-
£5,387 GBP
View
B+
Retailer 7
-
£5,481 GBP
View
B+
Retailer 8
-
£5,565 GBP
View
B+
Retailer 9
-
£5,650 GBP
View
Retailer 10
-
£5,797 GBP
View
Price last confirmed 16 days ago
B
Retailer 11
-
£5,801 GBP
View
B+
Retailer 12
-
£6,117 GBP
View
B
Retailer 13
-
£6,324 GBP
View
B
Retailer 14
-
£6,572 GBP
View
Retailer 15
-
£6,664 GBP
View
Price last confirmed 15 days ago
B
Retailer 16
-
£7,380 GBP
View
B
Retailer 17
-
£8,408 GBP
View
Most Expensive
B
NZ Jewellers
a5515d09-177d-496b-b1b3-bad9bc0f651b · Nov 5
£10,118 GBP
$13,543 USD
View
17 more retailers have this diamond
Prices start from £4,779 GBPSave up to £5,339 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+
1.59ct Radiant
£4,779 GBP