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Oval|Natural|GIA

0.90ct K SI1 Oval Natural Diamond

VG • K/SI1 • GIA 6381102889

Certificate GIA 6381102889

Diamond specifications and retailer prices

From £637 GBP
As of November 6, 2026
Save £1,567 GBP (71%) vs most expensive(unlock to see where)
19 retailers carry this diamond
Most expensive: £2,204 GBP at NZ Jewellers · As of November 5, 2026
View at NZ Jewellers

About this 0.9ct natural oval diamond

This 0.9ct natural oval sits in the just-under-one-carat band, graded K colour (faint-tinted) and SI1 clarity (slightly-included), with a very-good cut grade stated by the retailer rather than the lab and certified by GIA 6381102889. Listed at 19 retailers as of November 5, 2026, with prices from £637 to £2,204, a £1,567 spread on the same certified stone. NZ Jewellers lists it at £2,204. 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

0.90
Carat
K
Colour
SI1
Clarity
Very Good
Cut (retailer stated)

Specifications

Cut (retailer stated)Very Good
PolishExcellent
SymmetryVery Good
FluorescenceFaint
OriginNatural
Grading LabGIA
CertificateGIA 6381102889
Dimensions7.11 × 5.32 × 3.52 mm
L/W Ratio1.34
Top View
7.11 mm5.32 mm0.90 ctK / SI1
OriginNatural
CutVery Good
PolishExcellent
SymmetryVery Good
FluorescenceFaint
CertificateGIA 6381102889
Side View
Table 58.0%CrownGirdle: THK-VTKPavilionCulet: NoneDepth 66.2%

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: £2,204 GBP|Low: £637 GBP|High: £2,204 GBP|Avg: £1,162 GBP
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
November 6, 2026
Retailer 2£637 GBP
Retailer 16£660 GBP
Retailer 8£814 GBP
Retailer 4£904 GBP
Retailer 6£904 GBP
Retailer 7£910 GBP
Retailer 11£914 GBP
Retailer 5£938 GBP
Retailer 9£997 GBP
Retailer 3£1,004 GBP
Retailer 13£1,021 GBP
Retailer 17£1,043 GBP
Retailer 12£1,257 GBP
Retailer 14£1,323 GBP
Retailer 15£1,650 GBP
Retailer 10£1,730 GBP
NZ Jewellers£2,204 GBP

25 data points across 17 retailers

19 retailers£637 GBP to £2,204 GBP

A
Cheapest Retailer
-
£637 GBP
B+
Retailer 2
-
£660 GBP
View
B+
Retailer 3
-
£814 GBP
View
B+
Retailer 4
-
£852 GBP
View
B+
Retailer 5
-
£904 GBP
View
Retailer 6
-
£904 GBP
View
Price last confirmed 8 days ago
B+
Retailer 7
-
£910 GBP
View
B+
Retailer 8
-
£914 GBP
View
B+
Retailer 9
-
£938 GBP
View
B
Retailer 10
-
£997 GBP
View
B
Retailer 11
-
£1,004 GBP
View
B
Retailer 12
-
£1,021 GBP
View
B
Retailer 13
-
£1,043 GBP
View
B
Retailer 14
-
£1,257 GBP
View
B
Retailer 15
-
£1,323 GBP
View
B
Retailer 16
-
£1,650 GBP
View
B
Retailer 17
-
£1,730 GBP
View
C
Retailer 18
-
£1,782 GBP
View
Most Expensive
C
NZ Jewellers
612d74c6-fea8-4fea-a686-0699ecaa21c3 · Nov 5
£2,204 GBP
$2,950 USD
View
18 more retailers have this diamond
Prices start from £637 GBPSave up to £1,567 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
0.90ct Oval
£637 GBP