Oval|Natural|GIA

1.30ct F SI1 Oval Natural Diamond

EX • F/SI1 • GIA 2557849281

Certificate GIA 2557849281

Diamond specifications and retailer prices

From £3,566 GBP
$4,778 USD
As of October 31, 2026
Save £3,042 GBP (46%) vs most expensive(unlock to see where)
18 retailers carry this diamond
Most expensive: £7,833 GBP at NZ Jewellers · As of September 29, 2026
View at NZ Jewellers

About this 1.3ct natural oval diamond

This 1.3ct natural oval sits in the one-and-a-quarter to one-and-a-half carat band, graded F 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 2557849281. Listed at 18 retailers as of October 29, 2026, with a 85% 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

1.30
Carat
F
Colour
SI1
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle33.1°
Pavilion angle41°
OriginNatural
Grading LabGIA
CertificateGIA 2557849281
Dimensions8.78 × 6.15 × 3.81 mm
L/W Ratio1.43
Girdle conditionFaceted
Key to symbols
Crystal, Feather, Needle
Top View
8.78 mm6.15 mm1.30 ctF / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 2557849281
Side View
Table 62.0%Crown 33.1°Girdle: THN-THKPavilion 41°Culet: NoneDepth 62.0%

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 31
Current: £4,777 GBP|Low: £3,566 GBP|High: £6,963 GBP|Avg: £4,881 GBP|-2.8%
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
November 2, 2026
Retailer 8£3,566 GBP
Retailer 9£3,668 GBP
Retailer 3£3,799 GBP
Retailer 11£3,890 GBP
Retailer 12£4,036 GBP
Retailer 10£4,161 GBP
Retailer 6£4,266 GBP
Retailer 2£4,462 GBP
Retailer 5£4,630 GBP
Retailer 1£4,777 GBP
Retailer 7£5,373 GBP
Retailer 13£6,608 GBP
Retailer 4£6,764 GBP

38 data points across 13 retailers

18 retailers£3,566 GBP to £6,608 GBP

B+
Cheapest Retailer
-
£3,566 GBP
$4,778 USD
B+
Retailer 2
-
£3,668 GBP
SGD 6,642 SGD
View
B+
Retailer 3
-
£3,799 GBP
SGD 6,878 SGD
View
B+
Retailer 4
-
£3,890 GBP
$5,212 USD
View
B
Retailer 5
-
£4,036 GBP
$5,408 USD
View
Final sale: no returns
B+
Retailer 6
-
£4,161 GBP
$5,575 USD
View
B+
Retailer 7
-
£4,266 GBP
View
B+
Retailer 8
-
£4,462 GBP
$5,978 USD
View
Retailer 9
-
£4,592 GBP
$6,153 USD
View
Price last confirmed 21 days ago
Retailer 10
-
£4,630 GBP
A$9,543 AUD
View
Price last confirmed 22 days ago
Retailer 11
-
£4,683 GBP
$6,275 USD
View
Price last confirmed 25 days ago
Retailer 12
-
£4,683 GBP
$6,275 USD
View
Price last confirmed 33 days ago
B+
Retailer 13
-
£4,777 GBP
€6,096 EUR
View
B
Retailer 14
-
£5,373 GBP
ZAR 116,312 ZAR
View
Retailer 15
-
£5,403 GBP
$7,240 USD
View
Price last confirmed 24 days ago
B
Retailer 16
-
£6,608 GBP
View
Retailer 17
-
£6,764 GBP
$9,063 USD
View
Price last confirmed 13 days ago
Most Expensive
NZ Jewellers
ce7a24e7-89d8-4a57-a2f8-18c00eb39f35 · Sep 29
£7,833 GBP
$10,495 USD
View
Price last confirmed 33 days ago
17 more retailers have this diamond
Prices start from £3,566 GBPSave up to £3,042 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+
1.30ct Oval
£3,566 GBP