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Round|Natural|GIA

1.00ct K IF Round Natural Diamond

EX • K/IF • GIA 1519584532

Certificate GIA 1519584532

Diamond specifications and retailer prices

From £1,678 GBP
As of November 5, 2026
Save £2,510 GBP (60%) vs most expensive(unlock to see where)
17 retailers carry this diamond
Most expensive: £4,203 GBP at NZ Jewellers · As of September 28, 2026
View at NZ Jewellers

About this 1ct natural round diamond

This 1ct natural round sits in the classic one-carat band, graded K colour (faint-tinted) and IF clarity (flawless or internally-flawless), with a top-tier cut grade and certified by GIA 1519584532. Listed at 17 retailers as of November 5, 2026, with a 150% spread between the cheapest and most expensive listing. That is exactly the kind of price-discovery gap Carat Hunter was built to surface. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.00
Carat
K
Colour
IF
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle36°
Pavilion angle41°
OriginNatural
Grading LabGIA
CertificateGIA 1519584532
Dimensions6.39 × 6.35 × 3.94 mm
L/W Ratio1.01
Culet sizeNone
Top View
6.39 mm6.35 mm1.00 ctK / IF
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 1519584532
Side View
Table 59.0%Crown 36°Girdle: MED-STKPavilion 41°Culet: NoneDepth 62.0%

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: £4,187 GBP|Low: £1,668 GBP|High: £4,203 GBP|Avg: £2,303 GBP|-0.4%
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
November 6, 2026
Retailer 8£1,678 GBP
Retailer 3£1,794 GBP
Retailer 10£1,802 GBP
Retailer 13£1,973 GBP
Retailer 5£2,003 GBP
Retailer 11£2,003 GBP
Retailer 12£2,080 GBP
Retailer 2£2,107 GBP
Retailer 4£2,108 GBP
Retailer 6£2,344 GBP
Retailer 7£2,444 GBP
Retailer 9£3,499 GBP
NZ Jewellers£4,187 GBP

45 data points across 13 retailers

17 retailers£1,678 GBP to £4,187 GBP

A
Cheapest Retailer
-
£1,678 GBP
A
Retailer 2
-
£1,794 GBP
View
A
Retailer 3
-
£1,802 GBP
View
Retailer 4
-
£1,924 GBP
View
Price last confirmed 109 days ago
A
Retailer 5
-
£1,973 GBP
View
A
Retailer 6
-
£2,003 GBP
View
Retailer 7
-
£2,003 GBP
View
Price last confirmed 8 days ago
Retailer 8
-
£2,011 GBP
View
Price last confirmed 39 days ago
B+
Retailer 9
-
£2,080 GBP
View
A
Retailer 10
-
£2,107 GBP
View
B+
Retailer 11
-
£2,108 GBP
View
Retailer 12
-
£2,320 GBP
View
Price last confirmed 38 days ago
B+
Retailer 13
-
£2,344 GBP
View
B+
Retailer 14
-
£2,444 GBP
View
B
Retailer 15
-
£3,499 GBP
View
B
Retailer 16
-
£4,187 GBP
View
Most Expensive
NZ Jewellers
fd3abd0d-9765-4dcb-9d40-21405cd5a994 · Sep 28
£4,203 GBP
$5,657 USD
View
Price last confirmed 39 days ago
16 more retailers have this diamond
Prices start from £1,678 GBPSave up to £2,510 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 Round
£1,678 GBP