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Oval|Natural|GIA

1.20ct D SI1 Oval Natural Diamond

EX • D/SI1 • GIA 1548591047

Certificate GIA 1548591047

Diamond specifications and retailer prices

From £2,332 GBP
As of November 5, 2026
Save £2,864 GBP (55%) vs most expensive(unlock to see where)
23 retailers carry this diamond
Most expensive: £5,909 GBP at NZ Jewellers · As of September 30, 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 1548591047. Listed at 23 retailers as of November 2, 2026, with a 123% 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
SymmetryExcellent
FluorescenceNone
Crown angle34.1°
Pavilion angle38.7°
OriginNatural
Grading LabGIA
CertificateGIA 1548591047
Dimensions8.53 × 6.14 × 3.71 mm
L/W Ratio1.39
Girdle conditionFaceted
Top View
8.53 mm6.14 mm1.20 ctD / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 1548591047
Side View
Table 63.0%Crown 34.1°Girdle: MED-STKPavilion 38.7°Culet: NoneDepth 60.4%

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 5
Current: £3,310 GBP|Low: £2,332 GBP|High: £5,467 GBP|Avg: £3,278 GBP|-4.2%
Retailer 1
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
November 3, 2026
Retailer 4£2,332 GBP
Retailer 17£2,467 GBP
Retailer 15£2,519 GBP
Retailer 8£2,601 GBP
Retailer 5£2,669 GBP
Retailer 9£2,728 GBP
Retailer 7£2,820 GBP
Retailer 12£3,048 GBP
Retailer 13£3,182 GBP
Retailer 3£3,213 GBP
Retailer 18£3,213 GBP
Retailer 1£3,310 GBP
Retailer 2£3,317 GBP
Retailer 10£3,437 GBP
Retailer 14£3,691 GBP
Retailer 6£3,878 GBP
Retailer 16£4,010 GBP
Retailer 11£5,196 GBP

25 data points across 18 retailers

23 retailers£2,332 GBP to £5,196 GBP

A
Cheapest Retailer
-
£2,332 GBP
A
Retailer 2
-
£2,467 GBP
View
A
Retailer 3
-
£2,519 GBP
View
A
Retailer 4
-
£2,601 GBP
View
A
Retailer 5
-
£2,669 GBP
View
B+
Retailer 6
-
£2,706 GBP
View
B+
Retailer 7
-
£2,820 GBP
View
B+
Retailer 8
-
£3,048 GBP
View
Retailer 9
-
£3,073 GBP
View
Price last confirmed 39 days ago
Retailer 10
-
£3,073 GBP
View
Price last confirmed 38 days ago
B+
Retailer 11
-
£3,182 GBP
View
B+
Retailer 12
-
£3,213 GBP
View
B+
Retailer 13
-
£3,213 GBP
View
B+
Retailer 14
-
£3,310 GBP
View
B+
Retailer 15
-
£3,317 GBP
View
Retailer 16
-
£3,419 GBP
View
Price last confirmed 28 days ago
B+
Retailer 17
-
£3,437 GBP
View
Retailer 18
-
£3,545 GBP
View
Price last confirmed 38 days ago
B+
Retailer 19
-
£3,691 GBP
View
B+
Retailer 20
-
£3,878 GBP
View
B+
Retailer 21
-
£4,010 GBP
View
B
Retailer 22
-
£5,196 GBP
View
Most Expensive
NZ Jewellers
11d9d830-3bbc-45c3-9e4d-f74ab8ac4177 · Sep 30
£5,909 GBP
$7,909 USD
View
Price last confirmed 37 days ago
22 more retailers have this diamond
Prices start from £2,332 GBPSave up to £2,864 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
£2,332 GBP