Oval|Natural|GIA

1.20ct G SI1 Oval Natural Diamond

EX • G/SI1 • GIA 5513577359

Certificate GIA 5513577359

Diamond specifications and retailer prices

From £3,127 GBP
As of November 6, 2026
Save £2,869 GBP (48%) vs most expensive(unlock to see where)
26 retailers carry this diamond
Most expensive: £6,925 GBP at NZ Jewellers · As of October 27, 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 G colour (near-colourless) and SI1 clarity (slightly-included), with a top-tier cut grade stated by the retailer rather than the lab and certified by GIA 5513577359. Listed at 26 retailers as of November 6, 2026, with a 92% 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
G
Colour
SI1
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishVery Good
SymmetryVery Good
FluorescenceMedium
OriginNatural
Grading LabGIA
CertificateGIA 5513577359
Dimensions8.38 × 5.97 × 3.71 mm
L/W Ratio1.40
Top View
8.38 mm5.97 mm1.20 ctG / SI1
OriginNatural
CutExcellent
PolishVery Good
SymmetryVery Good
FluorescenceMedium
CertificateGIA 5513577359
Side View
Table 59.0%CrownGirdle: MED-THKPavilionCulet: NoneDepth 62.2%

Caratlytics Score

How it works →
B+
Very Good
Strong quality and value balance
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See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 6
Current: £6,925 GBP|Low: £3,127 GBP|High: £6,925 GBP|Avg: £4,454 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
November 6, 2026
Retailer 13£3,127 GBP
Retailer 10£3,298 GBP
Retailer 3£3,530 GBP
Retailer 5£3,751 GBP
Retailer 12£3,751 GBP
Retailer 7£4,051 GBP
Retailer 11£4,164 GBP
Retailer 4£4,328 GBP
Retailer 6£4,406 GBP
Retailer 2£4,410 GBP
Retailer 8£5,041 GBP
Retailer 9£6,604 GBP
NZ Jewellers£6,925 GBP

44 data points across 13 retailers

26 retailers£3,127 GBP to £5,996 GBP

B+
Cheapest Retailer
-
£3,127 GBP
B+
Retailer 2
-
£3,235 GBP
View
Retailer 3
-
£3,272 GBP
View
Price last confirmed 11 days ago
B
Retailer 4
-
£3,298 GBP
View
Final sale: no returns
B
Retailer 5
-
£3,311 GBP
View
Retailer 6
-
£3,491 GBP
View
Price last confirmed 12 days ago
B
Retailer 7
-
£3,516 GBP
View
Retailer 8
-
£3,530 GBP
View
Price last confirmed 9 days ago
Retailer 9
-
£3,751 GBP
View
Price last confirmed 11 days ago
Retailer 10
-
£3,751 GBP
View
Price last confirmed 12 days ago
Retailer 11
-
£3,751 GBP
View
Price last confirmed 12 days ago
B
Retailer 12
-
£3,815 GBP
View
Retailer 13
-
£3,945 GBP
View
Price last confirmed 10 days ago
B
Retailer 14
-
£4,088 GBP
View
Retailer 15
-
£4,164 GBP
View
Price last confirmed 35 days ago
Retailer 16
-
£4,199 GBP
View
Price last confirmed 11 days ago
Retailer 17
-
£4,199 GBP
View
Price last confirmed 11 days ago
Retailer 18
-
£4,328 GBP
View
Price last confirmed 10 days ago
Retailer 19
-
£4,341 GBP
View
Price last confirmed 11 days ago
B
Retailer 20
-
£4,406 GBP
View
B
Retailer 21
-
£4,410 GBP
View
B
Retailer 22
-
£4,770 GBP
View
Retailer 23
-
£5,041 GBP
View
Price last confirmed 10 days ago
B
Retailer 24
-
£5,996 GBP
View
Retailer 25
-
£6,604 GBP
View
Price last confirmed 11 days ago
Most Expensive
NZ Jewellers
e5203577-bd86-4b51-a68d-afae1f7c5aa1 · Oct 27
£6,925 GBP
$9,269 USD
View
Price last confirmed 10 days ago
25 more retailers have this diamond
Prices start from £3,127 GBPSave up to £2,869 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.

B+
1.20ct Oval
£3,127 GBP