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Round|Natural|GIA

1.00ct I IF Round Natural Diamond

EX • I/IF • GIA 1543760127

Certificate GIA 1543760127

Diamond specifications and retailer prices

From £2,444 GBP
As of November 3, 2026
Save £2,172 GBP (47%) vs most expensive(unlock to see where)
19 retailers carry this diamond
Most expensive: £4,719 GBP at NZ Jewellers · As of September 26, 2026
View at NZ Jewellers

About this 1ct natural round diamond

This 1ct natural round sits in the classic one-carat band, graded I colour (near-colourless) and IF clarity (flawless or internally-flawless), with a top-tier cut grade and certified by GIA 1543760127. Listed at 19 retailers as of November 3, 2026, with a 89% 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
I
Colour
IF
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceFaint
Crown angle36.5°
Pavilion angle41°
OriginNatural
Grading LabGIA
CertificateGIA 1543760127
Dimensions6.32 × 6.37 × 4.02 mm
L/W Ratio1.01
Culet sizeNone
Top View
6.32 mm6.37 mm1.00 ctI / IF
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceFaint
CertificateGIA 1543760127
Side View
Table 56.0%Crown 36.5°Girdle: MED-STKPavilion 41°Culet: NoneDepth 63.4%

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 3
Current: £4,616 GBP|Low: £1,917 GBP|High: £4,667 GBP|Avg: £3,086 GBP|-0.2%
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
November 5, 2026
Retailer 13£2,444 GBP
Retailer 9£2,444 GBP
Retailer 12£2,444 GBP
Retailer 2£2,649 GBP
Retailer 4£2,654 GBP
Retailer 7£2,730 GBP
Retailer 10£2,913 GBP
Retailer 6£2,993 GBP
Retailer 5£3,063 GBP
Retailer 14£3,150 GBP
Retailer 11£3,262 GBP
Retailer 3£3,398 GBP
Retailer 8£4,427 GBP
NZ Jewellers£4,616 GBP

34 data points across 14 retailers

19 retailers£2,444 GBP to £4,616 GBP

Retailer 1
-
£2,010 GBP
Price last confirmed 62 days ago
A
Retailer 2
-
£2,444 GBP
View
A
Retailer 3
-
£2,444 GBP
View
A
Retailer 4
-
£2,444 GBP
View
Final sale: no returns
A
Retailer 5
-
£2,649 GBP
View
A
Retailer 6
-
£2,654 GBP
View
Retailer 7
-
£2,654 GBP
View
Price last confirmed 35 days ago
A
Retailer 8
-
£2,730 GBP
View
Retailer 9
-
£2,756 GBP
View
Price last confirmed 37 days ago
A
Retailer 10
-
£2,913 GBP
View
Retailer 11
-
£2,993 GBP
View
Price last confirmed 33 days ago
B+
Retailer 12
-
£3,063 GBP
View
B+
Retailer 13
-
£3,150 GBP
View
Retailer 14
-
£3,218 GBP
View
Price last confirmed 34 days ago
B+
Retailer 15
-
£3,262 GBP
View
B+
Retailer 16
-
£3,398 GBP
View
B+
Retailer 17
-
£4,427 GBP
View
B
Retailer 18
-
£4,616 GBP
View
Most Expensive
NZ Jewellers
8e4fa28a-4374-4420-ab8c-0512eb7770f4 · Sep 26
£4,719 GBP
$6,370 USD
View
Price last confirmed 39 days ago
18 more retailers have this diamond
Prices start from £2,444 GBPSave up to £2,172 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
£2,444 GBP