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Oval|Natural|GIA

1.20ct D SI1 Oval Natural Diamond

ID • D/SI1 • GIA 2537846350

Certificate GIA 2537846350

Diamond specifications and retailer prices

From £2,334 GBP
As of November 6, 2026
Save £2,916 GBP (56%) vs most expensive(unlock to see where)
24 retailers carry this diamond
Most expensive: £5,250 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 2537846350. Listed at 24 retailers as of November 5, 2026, with prices from £2,334 to £5,250, a £2,916 spread on the same certified stone. NZ Jewellers lists it at £5,250. 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
Ideal
Cut (retailer stated)

Specifications

Cut (retailer stated)Ideal
PolishExcellent
SymmetryExcellent
FluorescenceMedium
Crown angle33.05°
Pavilion angle39.56°
OriginNatural
Grading LabGIA
CertificateGIA 2537846350
Dimensions8.54 × 5.93 × 3.78 mm
L/W Ratio1.44
Top View
8.54 mm5.93 mm1.20 ctD / SI1
OriginNatural
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceMedium
CertificateGIA 2537846350
Side View
Table 62.0%Crown 33.05°Girdle: STK-THKPavilion 39.56°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: £2,334 GBP|Low: £2,334 GBP|High: £5,100 GBP|Avg: £3,271 GBP|-3.0%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
November 6, 2026
Retailer 1£2,334 GBP
Retailer 8£2,343 GBP
Retailer 5£2,680 GBP
Retailer 2£2,923 GBP
Retailer 3£3,052 GBP
Retailer 6£3,409 GBP
Retailer 4£3,678 GBP
Retailer 7£5,039 GBP

27 data points across 8 retailers

24 retailers£2,334 GBP to £5,250 GBP

A
Cheapest Retailer
-
£2,334 GBP
A
Retailer 2
-
£2,343 GBP
View
A
Retailer 3
-
£2,573 GBP
View
B+
Retailer 4
-
£2,651 GBP
View
A
Retailer 5
-
£2,680 GBP
View
B+
Retailer 6
-
£2,781 GBP
View
Final sale: no returns
B+
Retailer 7
-
£2,784 GBP
View
B+
Retailer 8
-
£2,873 GBP
View
B+
Retailer 9
-
£2,923 GBP
View
B+
Retailer 10
-
£2,956 GBP
View
Retailer 11
-
£3,013 GBP
View
Price last confirmed 8 days ago
B+
Retailer 12
-
£3,013 GBP
View
B+
Retailer 13
-
£3,013 GBP
View
B+
Retailer 14
-
£3,052 GBP
View
B+
Retailer 15
-
£3,112 GBP
View
B+
Retailer 16
-
£3,153 GBP
View
Retailer 17
-
£3,231 GBP
View
Price last confirmed 33 days ago
B+
Retailer 18
-
£3,409 GBP
View
B+
Retailer 19
-
£3,477 GBP
View
B+
Retailer 20
-
£3,678 GBP
View
B
Retailer 21
-
£4,412 GBP
View
B
Retailer 22
-
£4,536 GBP
View
B
Retailer 23
-
£5,039 GBP
View
Most Expensive
B
NZ Jewellers
bdb9aff4-b9dd-4ab4-b5e2-625996455444 · Nov 5
£5,250 GBP
$7,027 USD
View
23 more retailers have this diamond
Prices start from £2,334 GBPSave up to £2,916 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
£2,334 GBP