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Oval|Natural|GIA

1.00ct K SI2 Oval Natural Diamond

ID • K/SI2 • GIA 6551694916

Certificate GIA 6551694916

Diamond specifications and retailer prices

From £612 GBP
As of November 6, 2026
Save £1,380 GBP (69%) vs most expensive(unlock to see where)
16 retailers carry this diamond
Most expensive: £1,992 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 SI2 clarity (slightly-included), with a top-tier cut grade stated by the retailer rather than the lab and certified by GIA 6551694916. Listed at 16 retailers as of November 5, 2026, with prices from £612 to £1,992, a £1,380 spread on the same certified stone. NZ Jewellers lists it at £1,992. SI-grade stones are eye-clean roughly 60 to 70% of the time at this carat range. Check the inclusion plot on the cert and ask the retailer for high-resolution video before buying.

The 4Cs

1.00
Carat
K
Colour
SI2
Clarity
Ideal
Cut (retailer stated)

Specifications

Cut (retailer stated)Ideal
PolishExcellent
SymmetryVery Good
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 6551694916
Dimensions8.42 × 5.64 × 3.33 mm
L/W Ratio1.49
Culet sizeNone
Key to symbols
Crystal, Feather, Twinning Wisp, Needle, Indented Natural
Top View
8.42 mm5.64 mm1.00 ctK / SI2
OriginNatural
CutIdeal
PolishExcellent
SymmetryVery Good
FluorescenceNone
CertificateGIA 6551694916
Side View
Table 63.0%CrownGirdlePavilionCulet: NoneDepth 59.0%

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 6
Current: £1,992 GBP|Low: £602 GBP|High: £2,173 GBP|Avg: £1,013 GBP|-8.4%
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
Retailer 14
Retailer 15
Retailer 16
November 6, 2026
Retailer 15£612 GBP
Retailer 8£782 GBP
Retailer 5£817 GBP
Retailer 14£817 GBP
Retailer 2£835 GBP
Retailer 9£843 GBP
Retailer 4£848 GBP
Retailer 7£874 GBP
Retailer 6£917 GBP
Retailer 11£921 GBP
Retailer 16£942 GBP
Retailer 3£1,006 GBP
Retailer 10£1,138 GBP
Retailer 13£1,157 GBP
Retailer 12£1,493 GBP
NZ Jewellers£1,992 GBP

23 data points across 16 retailers

16 retailers£612 GBP to £1,992 GBP

A
Cheapest Retailer
-
£612 GBP
A
Retailer 2
-
£782 GBP
View
Retailer 3
-
£817 GBP
View
Price last confirmed 21 days ago
A
Retailer 4
-
£817 GBP
View
A
Retailer 5
-
£835 GBP
View
A
Retailer 6
-
£843 GBP
View
A
Retailer 7
-
£848 GBP
View
A
Retailer 8
-
£874 GBP
View
A
Retailer 9
-
£917 GBP
View
A
Retailer 10
-
£921 GBP
View
A
Retailer 11
-
£942 GBP
View
B+
Retailer 12
-
£1,006 GBP
View
A
Retailer 13
-
£1,138 GBP
View
B+
Retailer 14
-
£1,157 GBP
View
B+
Retailer 15
-
£1,493 GBP
View
Most Expensive
B
NZ Jewellers
2deac417-0a40-4f32-8a02-ef05563b6392 · Nov 5
£1,992 GBP
$2,666 USD
View
15 more retailers have this diamond
Prices start from £612 GBPSave up to £1,380 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 Oval
£612 GBP