Oval|Natural|GIA

1.20ct D SI1 Oval Natural Diamond

EX • D/SI1 • GIA 5526526080

Certificate GIA 5526526080

Diamond specifications and retailer prices

From £2,601 GBP
As of November 6, 2026
Save £2,794 GBP (52%) vs most expensive(unlock to see where)
25 retailers carry this diamond
Most expensive: £6,124 GBP at NZ Jewellers · As of September 14, 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 5526526080. Listed at 25 retailers as of November 4, 2026, with a 107% spread between the cheapest and most expensive listing. That is exactly the kind of price-discovery gap Carat Hunter was built to surface. 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
SymmetryVery Good
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 5526526080
Dimensions8.41 × 5.94 × 3.73 mm
L/W Ratio1.42
Top View
8.41 mm5.94 mm1.20 ctD / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryVery Good
FluorescenceNone
CertificateGIA 5526526080
Side View
Table 63.0%CrownGirdle: THN-THKPavilionCulet: NoneDepth 62.8%

Caratlytics Score

How it works →
A
Excellent
Excellent quality and great value
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See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 6
Current: £6,098 GBP|Low: £2,601 GBP|High: £6,098 GBP|Avg: £3,789 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
November 6, 2026
Retailer 5£2,601 GBP
Retailer 2£2,711 GBP
Retailer 16£2,991 GBP
Retailer 4£3,019 GBP
Retailer 6£3,135 GBP
Retailer 15£3,163 GBP
Retailer 18£3,242 GBP
Retailer 12£3,302 GBP
Retailer 13£3,440 GBP
Retailer 8£3,500 GBP
Retailer 9£3,500 GBP
Retailer 11£3,500 GBP
Retailer 3£3,508 GBP
Retailer 19£3,842 GBP
Retailer 10£4,038 GBP
Retailer 14£4,144 GBP
Retailer 17£5,395 GBP
Retailer 7£5,460 GBP
NZ Jewellers£6,098 GBP

27 data points across 19 retailers

25 retailers£2,601 GBP to £5,395 GBP

A
Cheapest Retailer
-
£2,601 GBP
A
Retailer 2
-
£2,711 GBP
View
B+
Retailer 3
-
£2,991 GBP
View
B+
Retailer 4
-
£3,019 GBP
View
B+
Retailer 5
-
£3,135 GBP
View
Final sale: no returns
B+
Retailer 6
-
£3,163 GBP
View
B+
Retailer 7
-
£3,242 GBP
View
B+
Retailer 8
-
£3,270 GBP
View
B+
Retailer 9
-
£3,302 GBP
View
B+
Retailer 10
-
£3,440 GBP
View
B+
Retailer 11
-
£3,442 GBP
View
Retailer 12
-
£3,500 GBP
View
Price last confirmed 21 days ago
Retailer 13
-
£3,500 GBP
View
Price last confirmed 19 days ago
Retailer 14
-
£3,500 GBP
View
Price last confirmed 21 days ago
B+
Retailer 15
-
£3,508 GBP
View
Retailer 16
-
£3,515 GBP
View
Price last confirmed 53 days ago
Retailer 17
-
£3,543 GBP
View
Price last confirmed 28 days ago
B+
Retailer 18
-
£3,842 GBP
View
Retailer 19
-
£4,038 GBP
View
Price last confirmed 19 days ago
Retailer 20
-
£4,055 GBP
View
Price last confirmed 53 days ago
B
Retailer 21
-
£4,144 GBP
View
B
Retailer 22
-
£5,395 GBP
View
Retailer 23
-
£5,460 GBP
View
Price last confirmed 9 days ago
Retailer 24
-
£6,098 GBP
View
Price last confirmed 20 days ago
Most Expensive
NZ Jewellers
3fcd8a90-26ad-4ac3-8fa8-028203166f0f · Sep 14
£6,124 GBP
$8,197 USD
View
Price last confirmed 53 days ago
24 more retailers have this diamond
Prices start from £2,601 GBPSave up to £2,794 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
£2,601 GBP