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Oval|Natural|GIA

1.20ct D SI1 Oval Natural Diamond

EX • D/SI1 • GIA 6565517832

Certificate GIA 6565517832

Diamond specifications and retailer prices

From £2,878 GBP
As of November 6, 2026
Save £3,675 GBP (56%) vs most expensive(unlock to see where)
26 retailers carry this diamond
Most expensive: £6,553 GBP at NZ Jewellers · As of November 5, 2026
View at NZ Jewellers

About this 1.2ct natural oval diamond

This 1.2ct natural oval sits in the classic one-carat band, graded D colour (colourless) and SI1 clarity (slightly-included), with a top-tier cut grade stated by the retailer rather than the lab and certified by GIA 6565517832. Listed at 26 retailers as of November 5, 2026, with prices from £2,878 to £6,553, a £3,675 spread on the same certified stone. NZ Jewellers lists it at £6,553. 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

1.20
Carat
D
Colour
SI1
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle41.36°
Pavilion angle36.18°
OriginNatural
Grading LabGIA
CertificateGIA 6565517832
Dimensions8.11 × 5.77 × 3.68 mm
L/W Ratio1.41
Culet sizeNone
Key to symbols
Crystal, Feather, Cavity, Needle
Top View
8.11 mm5.77 mm1.20 ctD / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 6565517832
Side View
Table 63.0%Crown 41.36°Girdle: MED-VTKPavilion 36.18°Culet: NoneDepth 63.8%

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: £6,553 GBP|Low: £2,859 GBP|High: £6,553 GBP|Avg: £4,037 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
Retailer 18
Retailer 19
Retailer 20
November 6, 2026
Retailer 20£2,878 GBP
Retailer 17£2,903 GBP
Retailer 16£3,021 GBP
Retailer 7£3,190 GBP
Retailer 10£3,209 GBP
Retailer 18£3,323 GBP
Retailer 4£3,396 GBP
Retailer 2£3,649 GBP
Retailer 14£3,703 GBP
Retailer 3£3,761 GBP
Retailer 6£3,761 GBP
Retailer 9£3,761 GBP
Retailer 12£3,875 GBP
Retailer 8£3,950 GBP
Retailer 13£4,232 GBP
Retailer 5£4,347 GBP
Retailer 15£4,589 GBP
Retailer 11£5,472 GBP
Retailer 19£5,975 GBP
NZ Jewellers£6,553 GBP

22 data points across 20 retailers

26 retailers£2,878 GBP to £6,553 GBP

B+
Cheapest Retailer
-
£2,878 GBP
A
Retailer 2
-
£2,903 GBP
View
B+
Retailer 3
-
£3,021 GBP
View
B+
Retailer 4
-
£3,190 GBP
View
B+
Retailer 5
-
£3,280 GBP
View
B+
Retailer 6
-
£3,323 GBP
View
B+
Retailer 7
-
£3,396 GBP
View
B+
Retailer 8
-
£3,471 GBP
View
Final sale: no returns
B+
Retailer 9
-
£3,538 GBP
View
B+
Retailer 10
-
£3,649 GBP
View
Retailer 11
-
£3,665 GBP
View
Price last confirmed 11 days ago
B+
Retailer 12
-
£3,703 GBP
View
Retailer 13
-
£3,736 GBP
View
Price last confirmed 20 days ago
B+
Retailer 14
-
£3,761 GBP
View
Retailer 15
-
£3,761 GBP
View
Price last confirmed 8 days ago
B+
Retailer 16
-
£3,761 GBP
View
B
Retailer 17
-
£3,875 GBP
View
B
Retailer 18
-
£3,878 GBP
View
B
Retailer 19
-
£3,950 GBP
View
B
Retailer 20
-
£4,232 GBP
View
B
Retailer 21
-
£4,340 GBP
View
B
Retailer 22
-
£4,589 GBP
View
B
Retailer 23
-
£5,472 GBP
View
B
Retailer 24
-
£5,625 GBP
View
B
Retailer 25
-
£5,975 GBP
View
Most Expensive
B
NZ Jewellers
aa81593c-5bf3-4864-94fd-4c6571132952 · Nov 5
£6,553 GBP
$8,771 USD
View
25 more retailers have this diamond
Prices start from £2,878 GBPSave up to £3,675 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
1.20ct Oval
£2,878 GBP