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Oval|Natural|GIA

1.51ct F I1 Oval Natural Diamond

EX • F/I1 • GIA 1553949091

Certificate GIA 1553949091

Diamond specifications and retailer prices

From £3,705 GBP
$4,972 USD
As of November 1, 2026
Save £4,063 GBP (52%) vs most expensive(unlock to see where)
8 retailers carry this diamond
Most expensive: £7,768 GBP at NZ Jewellers · As of October 30, 2026
View at NZ Jewellers

About this 1.51ct natural oval diamond

This 1.51ct natural oval sits in the one-and-a-half to two carat band, graded F colour (colourless) and I1 clarity (included), with a top-tier cut grade stated by the retailer rather than the lab and certified by GIA 1553949091. Listed at 8 retailers as of October 30, 2026, with prices from £3,705 to £7,768, a £4,063 spread on the same certified stone. NZ Jewellers lists it at £7,768. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.51
Carat
F
Colour
I1
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishVery Good
SymmetryExcellent
FluorescenceNone
Crown angle35.87°
OriginNatural
Grading LabGIA
CertificateGIA 1553949091
Dimensions9.22 × 6.27 × 4.00 mm
L/W Ratio1.47
Culet sizeNone
Key to symbols
Feather, Crystal, Cloud, Cavity, Needle
Top View
9.22 mm6.27 mm1.51 ctF / I1
OriginNatural
CutExcellent
PolishVery Good
SymmetryExcellent
FluorescenceNone
CertificateGIA 1553949091
Side View
Table 55.0%Crown 35.87°Girdle: STK-VTHPavilionCulet: 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 1
Current: £7,768 GBP|Low: £3,524 GBP|High: £7,782 GBP|Avg: £4,792 GBP|+5.1%
NZ Jewellers
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
November 2, 2026
Retailer 3£3,705 GBP
Retailer 7£4,207 GBP
Retailer 8£4,207 GBP
Retailer 5£4,248 GBP
Retailer 4£4,274 GBP
Retailer 6£4,855 GBP
Retailer 9£5,094 GBP
Retailer 2£5,123 GBP
NZ Jewellers£7,768 GBP

23 data points across 9 retailers

8 retailers£3,705 GBP to £7,768 GBP

A
Cheapest Retailer
-
£3,705 GBP
$4,972 USD
B+
Retailer 2
-
£4,207 GBP
$5,646 USD
View
B+
Retailer 3
-
£4,207 GBP
$5,646 USD
View
B+
Retailer 4
-
£4,248 GBP
$5,701 USD
View
B+
Retailer 5
-
£4,274 GBP
$5,736 USD
View
B+
Retailer 6
-
£4,855 GBP
$6,515 USD
View
B
Retailer 7
-
£5,123 GBP
€6,547 EUR
View
Most Expensive
C
NZ Jewellers
18c8ebaa-0cb7-47d8-979b-d9c6601701bc · Oct 30
£7,768 GBP
$10,424 USD
View
7 more retailers have this diamond
Prices start from £3,705 GBPSave up to £4,063 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
1.51ct Oval
£3,705 GBP