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Oval|Natural|GIA

1.51ct J SI1 Oval Natural Diamond

VG • J/SI1 • GIA 7398879281

Certificate GIA 7398879281

Diamond specifications and retailer prices

From £2,751 GBP
HK$28,800 HKD
As of November 1, 2026
Save £3,788 GBP (58%) vs most expensive(unlock to see where)
21 retailers carry this diamond
Most expensive: £6,539 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 J colour (near-colourless) and SI1 clarity (slightly-included), with a very-good cut grade stated by the retailer rather than the lab and certified by GIA 7398879281. Listed at 21 retailers as of October 30, 2026, with prices from £2,751 to £6,539, a £3,788 spread on the same certified stone. NZ Jewellers lists it at £6,539. 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

1.51
Carat
J
Colour
SI1
Clarity
Very Good
Cut (retailer stated)

Specifications

Cut (retailer stated)Very Good
PolishExcellent
SymmetryVery Good
FluorescenceFaint
OriginNatural
Grading LabGIA
CertificateGIA 7398879281
Dimensions8.25 × 6.37 × 4.10 mm
L/W Ratio1.30
Top View
8.25 mm6.37 mm1.51 ctJ / SI1
OriginNatural
CutVery Good
PolishExcellent
SymmetryVery Good
FluorescenceFaint
CertificateGIA 7398879281
Side View
Table 59.0%CrownGirdle: THK-VTKPavilionCulet: NoneDepth 64.5%

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: £3,612 GBP|Low: £2,598 GBP|High: £6,050 GBP|Avg: £3,726 GBP|-1.2%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
November 1, 2026
Retailer 7£2,751 GBP
Retailer 9£3,030 GBP
Retailer 11£3,138 GBP
Retailer 10£3,194 GBP
Retailer 3£3,400 GBP
Retailer 1£3,612 GBP
Retailer 5£3,733 GBP
Retailer 2£3,784 GBP
Retailer 8£4,247 GBP
Retailer 6£4,614 GBP
Retailer 4£5,978 GBP

34 data points across 11 retailers

21 retailers£2,751 GBP to £6,539 GBP

A
Cheapest Retailer
-
£2,751 GBP
HK$28,800 HKD
B+
Retailer 2
-
£2,808 GBP
$3,762 USD
View
Retailer 3
-
£3,030 GBP
$4,060 USD
View
B+
Retailer 4
-
£3,138 GBP
$4,205 USD
View
Final sale: no returns
B+
Retailer 5
-
£3,194 GBP
$4,279 USD
View
B+
Retailer 6
-
£3,194 GBP
$4,280 USD
View
B+
Retailer 7
-
£3,400 GBP
$4,556 USD
View
B+
Retailer 8
-
£3,400 GBP
$4,556 USD
View
B+
Retailer 9
-
£3,400 GBP
$4,556 USD
View
B+
Retailer 10
-
£3,593 GBP
$4,814 USD
View
B+
Retailer 11
-
£3,612 GBP
View
B+
Retailer 12
-
£3,733 GBP
View
Retailer 13
-
£3,784 GBP
A$7,800 AUD
View
Price last confirmed 22 days ago
B
Retailer 14
-
£3,821 GBP
$5,120 USD
View
B
Retailer 15
-
£3,821 GBP
$5,120 USD
View
B
Retailer 16
-
£3,923 GBP
$5,257 USD
View
B
Retailer 17
-
£3,948 GBP
$5,290 USD
View
B
Retailer 18
-
£4,247 GBP
€5,420 EUR
View
B
Retailer 19
-
£4,614 GBP
ZAR 99,870 ZAR
View
B
Retailer 20
-
£5,978 GBP
View
Most Expensive
C
NZ Jewellers
89a836c5-5c72-498b-b699-b3b2cf54df26 · Oct 30
£6,539 GBP
$8,762 USD
View
20 more retailers have this diamond
Prices start from £2,751 GBPSave up to £3,788 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
£2,751 GBP