Oval|Natural|GIA

1.40ct I IF Oval Natural Diamond

VG • I/IF • GIA 1528221509

Certificate GIA 1528221509

Diamond specifications and retailer prices

From £4,740 GBP
As of November 4, 2026
Save £3,632 GBP (43%) vs most expensive(unlock to see where)
22 retailers carry this diamond
Most expensive: £10,076 GBP at NZ Jewellers · As of September 29, 2026
View at NZ Jewellers

About this 1.4ct natural oval diamond

This 1.4ct natural oval sits in the one-and-a-quarter to one-and-a-half carat band, graded I colour (near-colourless) and IF clarity (flawless or internally-flawless), with a very-good cut grade stated by the retailer rather than the lab and certified by GIA 1528221509. Listed at 22 retailers as of November 4, 2026, with a 77% spread between the cheapest and most expensive listing. That is exactly the kind of price-discovery gap Carat Hunter was built to surface. Cut grade matters more than carat or clarity for visible brilliance. If you can shift budget toward an Excellent or Ideal cut, do it before chasing higher colour or clarity.

The 4Cs

1.40
Carat
I
Colour
IF
Clarity
Very Good
Cut (retailer stated)

Specifications

Cut (retailer stated)Very Good
PolishExcellent
SymmetryVery Good
FluorescenceNone
Crown angle38.7°
Pavilion angle36.9°
OriginNatural
Grading LabGIA
CertificateGIA 1528221509
Dimensions8.56 × 6.35 × 3.89 mm
L/W Ratio1.35
Culet sizeNone
Top View
8.56 mm6.35 mm1.40 ctI / IF
OriginNatural
CutVery Good
PolishExcellent
SymmetryVery Good
FluorescenceNone
CertificateGIA 1528221509
Side View
Table 58.0%Crown 38.7°Girdle: MED-VTKPavilion 36.9°Culet: NoneDepth 61.2%

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: Nov 4
Current: £5,627 GBP|Low: £4,740 GBP|High: £8,496 GBP|Avg: £5,896 GBP|+0.1%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
November 6, 2026
Retailer 2£4,740 GBP
Retailer 6£5,084 GBP
Retailer 4£5,206 GBP
Retailer 9£5,249 GBP
Retailer 11£5,513 GBP
Retailer 10£5,560 GBP
Retailer 3£5,561 GBP
Retailer 1£5,627 GBP
Retailer 8£5,772 GBP
Retailer 12£6,511 GBP
Retailer 5£7,349 GBP
Retailer 7£8,372 GBP

45 data points across 12 retailers

22 retailers£4,740 GBP to £8,372 GBP

B+
Cheapest Retailer
-
£4,740 GBP
B+
Retailer 2
-
£5,084 GBP
View
B+
Retailer 3
-
£5,206 GBP
View
B+
Retailer 4
-
£5,249 GBP
View
B+
Retailer 5
-
£5,513 GBP
View
B+
Retailer 6
-
£5,550 GBP
View
B+
Retailer 7
-
£5,560 GBP
View
Final sale: no returns
Retailer 8
-
£5,561 GBP
View
Price last confirmed 25 days ago
B+
Retailer 9
-
£5,627 GBP
View
Retailer 10
-
£5,772 GBP
View
Price last confirmed 15 days ago
B+
Retailer 11
-
£6,006 GBP
View
Retailer 12
-
£6,024 GBP
View
Price last confirmed 39 days ago
Retailer 13
-
£6,024 GBP
View
Price last confirmed 29 days ago
Retailer 14
-
£6,117 GBP
View
Price last confirmed 38 days ago
B
Retailer 15
-
£6,151 GBP
View
B
Retailer 16
-
£6,511 GBP
View
Retailer 17
-
£6,951 GBP
View
Price last confirmed 38 days ago
Retailer 18
-
£6,951 GBP
View
Price last confirmed 28 days ago
B
Retailer 19
-
£7,349 GBP
View
B
Retailer 20
-
£8,372 GBP
View
Retailer 21
-
£10,076 GBP
View
Price last confirmed 39 days ago
Most Expensive
NZ Jewellers
27876329-91ce-4a94-b0a7-1336da6cfe1c · Sep 29
£10,076 GBP
$13,561 USD
View
Price last confirmed 37 days ago
21 more retailers have this diamond
Prices start from £4,740 GBPSave up to £3,632 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+
1.40ct Oval
£4,740 GBP