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Round|Natural|GIA

1.58ct K IF Round Natural Diamond

EX • K/IF • GIA 3515122117

Certificate GIA 3515122117

Diamond specifications and retailer prices

From £4,252 GBP
As of November 5, 2026
Save £3,542 GBP (45%) vs most expensive(unlock to see where)
5 retailers carry this diamond
Most expensive: £7,794 GBP at NZ Jewellers · As of November 5, 2026
View at NZ Jewellers

About this 1.58ct natural round diamond

This 1.58ct natural round sits in the one-and-a-half to two carat band, graded K colour (faint-tinted) and IF clarity (flawless or internally-flawless), with a top-tier cut grade and certified by GIA 3515122117. Listed at 5 retailers as of November 5, 2026, with prices from £4,252 to £7,794, a £3,542 spread on the same certified stone. NZ Jewellers lists it at £7,794. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.58
Carat
K
Colour
IF
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceMedium
Crown angle36.5°
Pavilion angle40.8°
OriginNatural
Grading LabGIA
CertificateGIA 3515122117
Dimensions7.37 × 7.43 × 4.67 mm
L/W Ratio1.01
Star length45%
Lower girdle80%
Top View
7.37 mm7.43 mm1.58 ctK / IF
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceMedium
CertificateGIA 3515122117
Side View
Table 56.0%Crown 36.5°Girdle: MED-STKPavilion 40.8°Culet: NoneDepth 63.1%

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: £7,794 GBP|Low: £3,746 GBP|High: £8,146 GBP|Avg: £5,700 GBP|-4.3%
NZ Jewellers
Retailer 2
Retailer 3
Retailer 4
Retailer 5
November 4, 2026
Retailer 4£4,252 GBP
Retailer 5£4,301 GBP
Retailer 3£4,838 GBP
Retailer 2£6,847 GBP
NZ Jewellers£7,794 GBP

22 data points across 5 retailers

5 retailers£4,252 GBP to £7,794 GBP

A
Cheapest Retailer
-
£4,252 GBP
A
Retailer 2
-
£4,301 GBP
View
Final sale: no returns
A
Retailer 3
-
£4,838 GBP
View
B+
Retailer 4
-
£6,847 GBP
View
Most Expensive
B
NZ Jewellers
d5c30863-601f-48e3-90c8-6634ef109c66 · Nov 5
£7,794 GBP
$10,490 USD
View
4 more retailers have this diamond
Prices start from £4,252 GBPSave up to £3,542 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
1.58ct Round
£4,252 GBP