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Round|Natural|GIA

1.00ct I IF Round Natural Diamond

GD • I/IF • GIA 1337283683

Certificate GIA 1337283683

Diamond specifications and retailer prices

From £1,687 GBP
As of November 4, 2026
Save £2,964 GBP (64%) vs most expensive(unlock to see where)
22 retailers carry this diamond
Most expensive: £4,651 GBP at NZ Jewellers · As of November 5, 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 standard cut grade and certified by GIA 1337283683. Listed at 22 retailers as of November 4, 2026, with prices from £1,687 to £4,651, a £2,964 spread on the same certified stone. NZ Jewellers lists it at £4,651. Cut grade matters more than carat or clarity for visible brilliance. If you can shift budget toward an Excellent or Ideal cut, do it before chasing higher colour or clarity.

The 4Cs

1.00
Carat
I
Colour
IF
Clarity
Good
Cut

Specifications

CutGood
PolishExcellent
SymmetryVery Good
FluorescenceNone
Crown angle39°
Pavilion angle41°
OriginNatural
Grading LabGIA
CertificateGIA 1337283683
Dimensions6.24 × 6.17 × 4.07 mm
L/W Ratio1.01
Star length55%
Lower girdle80%
Girdle conditionFaceted
Culet sizeNone
Cert comments
Surface graining is not shown. Minor details of polish are not shown.
Key to symbols
Natural
Top View
6.24 mm6.17 mm1.00 ctI / IF
OriginNatural
CutGood
PolishExcellent
SymmetryVery Good
FluorescenceNone
CertificateGIA 1337283683
Side View
Table 56.0%Crown 39°Girdle: STK-THKPavilion 41°Culet: NoneDepth 66.0%

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 4
Current: £4,651 GBP|Low: £1,630 GBP|High: £4,651 GBP|Avg: £2,306 GBP|+2.5%
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
Retailer 15
Retailer 16
Retailer 17
Retailer 18
Retailer 19
Retailer 20
Retailer 21
November 5, 2026
Retailer 19£1,687 GBP
Retailer 11£1,744 GBP
Retailer 12£1,764 GBP
Retailer 8£1,768 GBP
Retailer 6£1,788 GBP
Retailer 4£1,816 GBP
Retailer 17£1,833 GBP
Retailer 9£1,859 GBP
Retailer 7£1,982 GBP
Retailer 5£2,016 GBP
Retailer 21£2,016 GBP
Retailer 3£2,093 GBP
Retailer 20£2,204 GBP
Retailer 10£2,325 GBP
Retailer 13£2,341 GBP
Retailer 2£2,424 GBP
Retailer 14£2,432 GBP
Retailer 16£2,573 GBP
Retailer 18£2,734 GBP
Retailer 15£3,710 GBP
NZ Jewellers£4,651 GBP

34 data points across 21 retailers

22 retailers£1,687 GBP to £4,651 GBP

A
Cheapest Retailer
-
£1,687 GBP
A
Retailer 2
-
£1,744 GBP
View
A
Retailer 3
-
£1,764 GBP
View
A
Retailer 4
-
£1,768 GBP
View
A
Retailer 5
-
£1,788 GBP
View
A
Retailer 6
-
£1,816 GBP
View
A
Retailer 7
-
£1,833 GBP
View
B+
Retailer 8
-
£1,859 GBP
View
Final sale: no returns
B+
Retailer 9
-
£1,982 GBP
View
A
Retailer 10
-
£2,016 GBP
View
A
Retailer 11
-
£2,016 GBP
View
B+
Retailer 12
-
£2,093 GBP
View
B+
Retailer 13
-
£2,204 GBP
View
B+
Retailer 14
-
£2,325 GBP
View
B+
Retailer 15
-
£2,341 GBP
View
A
Retailer 16
-
£2,424 GBP
View
Retailer 17
-
£2,432 GBP
View
Price last confirmed 29 days ago
Retailer 18
-
£2,522 GBP
View
Price last confirmed 13 days ago
B+
Retailer 19
-
£2,573 GBP
View
B+
Retailer 20
-
£2,734 GBP
View
B
Retailer 21
-
£3,710 GBP
View
Most Expensive
B
NZ Jewellers
81d94df1-6a84-456a-92a4-2552c5fe653f · Nov 5
£4,651 GBP
$6,279 USD
View
21 more retailers have this diamond
Prices start from £1,687 GBPSave up to £2,964 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
£1,687 GBP