Oval|Natural|GIA

1.51ct G SI1 Oval Natural Diamond

VG • G/SI1 • GIA 1553246271

Certificate GIA 1553246271

Diamond specifications and retailer prices

From £4,695 GBP
$6,291 USD
As of November 1, 2026
Save £5,244 GBP (53%) vs most expensive(unlock to see where)
25 retailers carry this diamond
Most expensive: £9,939 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 G 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 1553246271. Listed at 25 retailers as of October 30, 2026, with prices from £4,695 to £9,939, a £5,244 spread on the same certified stone. NZ Jewellers lists it at £9,939. 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
G
Colour
SI1
Clarity
Very Good
Cut (retailer stated)

Specifications

Cut (retailer stated)Very Good
PolishExcellent
SymmetryExcellent
FluorescenceFaint
Crown angle40.39°
Pavilion angle40.95°
OriginNatural
Grading LabGIA
CertificateGIA 1553246271
Dimensions8.68 × 6.33 × 4.09 mm
L/W Ratio1.37
Culet sizeNone
Top View
8.68 mm6.33 mm1.51 ctG / SI1
OriginNatural
CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceFaint
CertificateGIA 1553246271
Side View
Table 61.0%Crown 40.39°Girdle: MED-THKPavilion 40.95°Culet: NoneDepth 64.6%

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 1
Current: £9,939 GBP|Low: £4,734 GBP|High: £9,939 GBP|Avg: £6,171 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
Retailer 15
Retailer 16
Retailer 17
Retailer 18
Retailer 19
Retailer 20
November 2, 2026
Retailer 9£4,734 GBP
Retailer 6£4,969 GBP
Retailer 18£4,969 GBP
Retailer 12£4,978 GBP
Retailer 11£5,355 GBP
Retailer 20£5,383 GBP
Retailer 19£5,466 GBP
Retailer 2£5,599 GBP
Retailer 14£5,603 GBP
Retailer 4£5,698 GBP
Retailer 3£5,731 GBP
Retailer 8£5,732 GBP
Retailer 10£5,732 GBP
Retailer 7£5,926 GBP
Retailer 5£6,212 GBP
Retailer 13£6,492 GBP
Retailer 16£7,300 GBP
Retailer 15£8,281 GBP
Retailer 17£8,403 GBP
NZ Jewellers£9,939 GBP

31 data points across 20 retailers

25 retailers£4,695 GBP to £9,939 GBP

B+
Cheapest Retailer
-
£4,695 GBP
$6,291 USD
B+
Retailer 2
-
£4,734 GBP
$6,343 USD
View
B+
Retailer 3
-
£4,969 GBP
$6,658 USD
View
B+
Retailer 4
-
£4,969 GBP
$6,658 USD
View
Final sale: no returns
B+
Retailer 5
-
£4,978 GBP
$6,670 USD
View
B+
Retailer 6
-
£5,056 GBP
$6,775 USD
View
B+
Retailer 7
-
£5,291 GBP
$7,089 USD
View
B+
Retailer 8
-
£5,355 GBP
$7,175 USD
View
B+
Retailer 9
-
£5,383 GBP
$7,213 USD
View
B+
Retailer 10
-
£5,466 GBP
$7,324 USD
View
B+
Retailer 11
-
£5,599 GBP
View
B+
Retailer 12
-
£5,603 GBP
View
B+
Retailer 13
-
£5,698 GBP
$7,635 USD
View
Retailer 14
-
£5,731 GBP
A$11,813 AUD
View
Price last confirmed 11 days ago
B+
Retailer 15
-
£5,732 GBP
$7,680 USD
View
B+
Retailer 16
-
£5,732 GBP
$7,680 USD
View
B+
Retailer 17
-
£5,926 GBP
$7,940 USD
View
B
Retailer 18
-
£6,021 GBP
$8,067 USD
View
B
Retailer 19
-
£6,212 GBP
$8,323 USD
View
Retailer 20
-
£6,212 GBP
$8,323 USD
View
Price last confirmed 24 days ago
B
Retailer 21
-
£6,492 GBP
€8,284 EUR
View
B
Retailer 22
-
£7,300 GBP
ZAR 158,021 ZAR
View
B
Retailer 23
-
£8,281 GBP
View
B
Retailer 24
-
£8,403 GBP
View
Most Expensive
B
NZ Jewellers
618cd255-7f3c-4802-b001-fe4b8bd1c12f · Oct 30
£9,939 GBP
$13,317 USD
View
24 more retailers have this diamond
Prices start from £4,695 GBPSave up to £5,244 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+
1.51ct Oval
£4,695 GBP