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Round|Natural|GIA

1.00ct E SI2 Round Natural Diamond

VG • E/SI2 • GIA 1438221036

Certificate GIA 1438221036

Diamond specifications and retailer prices

From £1,523 GBP
As of November 5, 2026
Save £2,892 GBP (66%) vs most expensive(unlock to see where)
18 retailers carry this diamond
Most expensive: £4,416 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 E colour (colourless) and SI2 clarity (slightly-included), with a very-good cut grade and certified by GIA 1438221036. Listed at 18 retailers as of November 5, 2026, with prices from £1,523 to £4,416, a £2,892 spread on the same certified stone. NZ Jewellers lists it at £4,416. 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
E
Colour
SI2
Clarity
Very Good
Cut

Specifications

CutVery Good
PolishVery Good
SymmetryVery Good
FluorescenceFaint
Crown angle36°
Pavilion angle41.6°
OriginNatural
Grading LabGIA
CertificateGIA 1438221036
Dimensions6.36 × 6.29 × 3.99 mm
L/W Ratio1.01
Culet sizeNone
Key to symbols
Feather, Crystal, Pinpoint
Top View
6.36 mm6.29 mm1.00 ctE / SI2
OriginNatural
CutVery Good
PolishVery Good
SymmetryVery Good
FluorescenceFaint
CertificateGIA 1438221036
Side View
Table 61.0%Crown 36°Girdle: MED-THKPavilion 41.6°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: £2,147 GBP|Low: £1,467 GBP|High: £3,745 GBP|Avg: £2,154 GBP
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
November 6, 2026
Retailer 4£1,523 GBP
Retailer 8£1,540 GBP
Retailer 9£1,862 GBP
Retailer 6£1,917 GBP
Retailer 10£1,949 GBP
Retailer 1£2,147 GBP
Retailer 2£2,193 GBP
Retailer 3£2,222 GBP
Retailer 7£2,378 GBP
Retailer 5£3,690 GBP

40 data points across 10 retailers

18 retailers£1,523 GBP to £4,416 GBP

A
Cheapest Retailer
-
£1,523 GBP
A
Retailer 2
-
£1,540 GBP
View
A
Retailer 3
-
£1,862 GBP
View
B+
Retailer 4
-
£1,869 GBP
View
A
Retailer 5
-
£1,917 GBP
View
B+
Retailer 6
-
£1,949 GBP
View
Final sale: no returns
B+
Retailer 7
-
£2,112 GBP
View
Retailer 8
-
£2,112 GBP
View
Price last confirmed 8 days ago
B+
Retailer 9
-
£2,147 GBP
View
B+
Retailer 10
-
£2,193 GBP
View
B+
Retailer 11
-
£2,217 GBP
View
B+
Retailer 12
-
£2,222 GBP
View
B+
Retailer 13
-
£2,378 GBP
View
B+
Retailer 14
-
£2,437 GBP
View
B
Retailer 15
-
£3,328 GBP
View
B
Retailer 16
-
£3,690 GBP
View
B
Retailer 17
-
£3,841 GBP
View
Most Expensive
B
NZ Jewellers
172b5417-a935-4794-9546-224095700267 · Nov 5
£4,416 GBP
$5,943 USD
View
17 more retailers have this diamond
Prices start from £1,523 GBPSave up to £2,892 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
£1,523 GBP