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Radiant|Natural|GIA

1.51ct K SI1 Radiant Natural Diamond

EX • K/SI1 • GIA 7542569108

Certificate GIA 7542569108

Diamond specifications and retailer prices

From £2,668 GBP
As of November 5, 2026
Save £3,162 GBP (54%) vs most expensive(unlock to see where)
13 retailers carry this diamond
Most expensive: £5,830 GBP at NZ Jewellers · As of November 5, 2026
View at NZ Jewellers

About this 1.51ct natural radiant diamond

This 1.51ct natural radiant sits in the one-and-a-half to two carat band, graded K colour (faint-tinted) and SI1 clarity (slightly-included), with a top-tier cut grade stated by the retailer rather than the lab and certified by GIA 7542569108. Listed at 13 retailers as of November 5, 2026, with prices from £2,668 to £5,830, a £3,162 spread on the same certified stone. NZ Jewellers lists it at £5,830. 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

1.51
Carat
K
Colour
SI1
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryVery Good
FluorescenceNone
Crown angle45.72°
OriginNatural
Grading LabGIA
CertificateGIA 7542569108
Dimensions7.61 × 5.82 × 3.96 mm
L/W Ratio1.31
Cert comments
Additional clouds are not shown. Pinpoints are not shown.
Key to symbols
Cloud, Feather, Crystal, Needle
Top View
7.61 mm5.82 mm1.51 ctK / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryVery Good
FluorescenceNone
CertificateGIA 7542569108
Side View
Table 68.0%Crown 45.72°Girdle: MED-STKPavilionCulet: NoneDepth 68.1%

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 5
Current: £5,830 GBP|Low: £2,888 GBP|High: £5,830 GBP|Avg: £3,778 GBP
NZ Jewellers
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
November 7, 2026
Retailer 7£2,888 GBP
Retailer 6£3,032 GBP
Retailer 8£3,032 GBP
Retailer 9£3,032 GBP
Retailer 2£3,390 GBP
Retailer 10£3,498 GBP
Retailer 3£3,558 GBP
Retailer 4£4,082 GBP
Retailer 5£5,315 GBP
NZ Jewellers£5,830 GBP

45 data points across 10 retailers

13 retailers£2,668 GBP to £5,830 GBP

A
Cheapest Retailer
-
£2,668 GBP
B+
Retailer 2
-
£2,847 GBP
View
B+
Retailer 3
-
£2,888 GBP
View
Retailer 4
-
£3,032 GBP
View
Price last confirmed 9 days ago
B+
Retailer 5
-
£3,032 GBP
View
B+
Retailer 6
-
£3,032 GBP
View
B+
Retailer 7
-
£3,390 GBP
View
B+
Retailer 8
-
£3,406 GBP
View
B+
Retailer 9
-
£3,498 GBP
View
B+
Retailer 10
-
£3,558 GBP
View
B+
Retailer 11
-
£4,082 GBP
View
B
Retailer 12
-
£5,315 GBP
View
Most Expensive
B
NZ Jewellers
83745427-245a-4899-9d78-a2aad90a0f91 · Nov 5
£5,830 GBP
$7,803 USD
View
12 more retailers have this diamond
Prices start from £2,668 GBPSave up to £3,162 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
1.51ct Radiant
£2,668 GBP