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Oval|Natural|GIA

1.00ct K SI1 Oval Natural Diamond

GD • K/SI1 • GIA 1449591747

Certificate GIA 1449591747

Diamond specifications and retailer prices

From £962 GBP
As of November 6, 2026
Save £1,886 GBP (66%) vs most expensive(unlock to see where)
18 retailers carry this diamond
Most expensive: £2,849 GBP at NZ Jewellers · As of November 5, 2026
View at NZ Jewellers

About this 1ct natural oval diamond

This 1ct natural oval sits in the classic one-carat band, graded K colour (faint-tinted) and SI1 clarity (slightly-included), with a standard cut grade stated by the retailer rather than the lab and certified by GIA 1449591747. Listed at 18 retailers as of November 5, 2026, with prices from £962 to £2,849, a £1,886 spread on the same certified stone. NZ Jewellers lists it at £2,849. 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
K
Colour
SI1
Clarity
Good
Cut (retailer stated)

Specifications

Cut (retailer stated)Good
PolishExcellent
SymmetryVery Good
FluorescenceNone
Crown angle35.4°
Pavilion angle31.1°
OriginNatural
Grading LabGIA
CertificateGIA 1449591747
Dimensions8.53 × 5.51 × 3.09 mm
L/W Ratio1.55
Culet sizeNone
Key to symbols
Crystal, Feather, Cloud, Needle
Top View
8.53 mm5.51 mm1.00 ctK / SI1
OriginNatural
CutGood
PolishExcellent
SymmetryVery Good
FluorescenceNone
CertificateGIA 1449591747
Side View
Table 54.0%Crown 35.4°Girdle: THK-VTKPavilion 31.1°Culet: NoneDepth 56.1%

Caratlytics Score

How it works →
B+
Very Good
Strong quality and value balance
Unlock full score analysis
See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 6
Current: £2,849 GBP|Low: £1,024 GBP|High: £2,849 GBP|Avg: £1,511 GBP
NZ Jewellers
Retailer 2
Retailer 3
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Retailer 21
November 6, 2026
Retailer 21£1,024 GBP
Retailer 15£1,044 GBP
Retailer 14£1,077 GBP
Retailer 5£1,082 GBP
Retailer 2£1,133 GBP
Retailer 4£1,168 GBP
Retailer 18£1,168 GBP
Retailer 6£1,173 GBP
Retailer 8£1,222 GBP
Retailer 19£1,233 GBP
Retailer 3£1,269 GBP
Retailer 13£1,295 GBP
Retailer 10£1,322 GBP
Retailer 20£1,348 GBP
Retailer 16£1,425 GBP
Retailer 9£1,668 GBP
Retailer 11£1,996 GBP
Retailer 17£2,040 GBP
Retailer 7£2,099 GBP
Retailer 12£2,415 GBP
NZ Jewellers£2,849 GBP

22 data points across 21 retailers

18 retailers£962 GBP to £2,849 GBP

B+
Cheapest Retailer
-
£962 GBP
B+
Retailer 2
-
£1,024 GBP
View
B+
Retailer 3
-
£1,044 GBP
View
B+
Retailer 4
-
£1,082 GBP
View
B+
Retailer 5
-
£1,133 GBP
View
Retailer 6
-
£1,168 GBP
View
Price last confirmed 8 days ago
B+
Retailer 7
-
£1,168 GBP
View
B+
Retailer 8
-
£1,173 GBP
View
B+
Retailer 9
-
£1,222 GBP
View
B+
Retailer 10
-
£1,233 GBP
View
B+
Retailer 11
-
£1,269 GBP
View
B+
Retailer 12
-
£1,295 GBP
View
B
Retailer 13
-
£1,348 GBP
View
B
Retailer 14
-
£1,425 GBP
View
B
Retailer 15
-
£1,668 GBP
View
B
Retailer 16
-
£2,040 GBP
View
C
Retailer 17
-
£2,099 GBP
View
Most Expensive
C
NZ Jewellers
ce692364-f460-43f9-9bcf-1d63fb2decdb · Nov 5
£2,849 GBP
$3,813 USD
View
17 more retailers have this diamond
Prices start from £962 GBPSave up to £1,886 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.

B+
1.00ct Oval
£962 GBP