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Oval|Natural|GIA

1.20ct J SI1 Oval Natural Diamond

EX • J/SI1 • GIA 5566226691

Certificate GIA 5566226691

Diamond specifications and retailer prices

From £1,734 GBP
₹221,316 INR
As of October 30, 2026
Save £2,271 GBP (57%) vs most expensive(unlock to see where)
21 retailers carry this diamond
Most expensive: £4,006 GBP at NZ Jewellers · As of October 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 J 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 5566226691. Listed at 21 retailers as of October 30, 2026, with prices from £1,734 to £4,006, a £2,271 spread on the same certified stone. NZ Jewellers lists it at £4,006. 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
J
Colour
SI1
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryExcellent
FluorescenceMedium
OriginNatural
Grading LabGIA
CertificateGIA 5566226691
Dimensions8.50 × 5.87 × 3.70 mm
L/W Ratio1.45
Girdle conditionFaceted
Culet sizeNone
Key to symbols
Crystal, Feather, Pinpoint, Natural
Top View
8.50 mm5.87 mm1.20 ctJ / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceMedium
CertificateGIA 5566226691
Side View
Table 62.0%CrownGirdle: THK-VTKPavilionCulet: NoneDepth 63.1%

Caratlytics Score

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

Price History

Last verified: Oct 30
Current: £4,006 GBP|Low: £1,724 GBP|High: £4,006 GBP|Avg: £2,540 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
October 31, 2026
Retailer 8£1,734 GBP
Retailer 6£1,823 GBP
Retailer 9£2,249 GBP
Retailer 3£2,299 GBP
Retailer 5£2,299 GBP
Retailer 11£2,370 GBP
Retailer 13£2,388 GBP
Retailer 2£2,402 GBP
Retailer 14£2,469 GBP
Retailer 7£2,521 GBP
Retailer 4£2,652 GBP
Retailer 10£2,799 GBP
Retailer 12£3,865 GBP
NZ Jewellers£4,006 GBP

33 data points across 14 retailers

21 retailers£1,734 GBP to £4,006 GBP

B+
Cheapest Retailer
-
£1,734 GBP
₹221,316 INR
B+
Retailer 2
-
£1,823 GBP
$2,443 USD
View
Final sale: no returns
B
Retailer 3
-
£1,963 GBP
$2,630 USD
View
B+
Retailer 4
-
£2,059 GBP
$2,759 USD
View
B
Retailer 5
-
£2,190 GBP
$2,934 USD
View
B
Retailer 6
-
£2,235 GBP
$2,995 USD
View
B
Retailer 7
-
£2,249 GBP
View
B
Retailer 8
-
£2,299 GBP
$3,080 USD
View
B
Retailer 9
-
£2,299 GBP
$3,080 USD
View
B
Retailer 10
-
£2,370 GBP
$3,175 USD
View
B
Retailer 11
-
£2,388 GBP
$3,199 USD
View
B
Retailer 12
-
£2,402 GBP
View
Retailer 13
-
£2,436 GBP
A$5,022 AUD
View
Price last confirmed 35 days ago
B
Retailer 14
-
£2,469 GBP
$3,308 USD
View
B
Retailer 15
-
£2,521 GBP
€3,217 EUR
View
B
Retailer 16
-
£2,560 GBP
$3,430 USD
View
B
Retailer 17
-
£2,585 GBP
$3,463 USD
View
B
Retailer 18
-
£2,652 GBP
$3,554 USD
View
B
Retailer 19
-
£2,799 GBP
ZAR 60,598 ZAR
View
Retailer 20
-
£3,865 GBP
View
Price last confirmed 10 days ago
Most Expensive
B
NZ Jewellers
f17d93bc-fafd-4da0-a1e8-e7dd0dfa4db8 · Oct 30
£4,006 GBP
$5,367 USD
View
20 more retailers have this diamond
Prices start from £1,734 GBPSave up to £2,271 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
£1,734 GBP