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Oval|Natural|GIA

1.51ct E SI1 Oval Natural Diamond

VG • E/SI1 • GIA 1559169538

Certificate GIA 1559169538

Diamond specifications and retailer prices

From £4,758 GBP
$6,336 USD
As of October 27, 2026
15 retailers carry this diamond
Most expensive: £9,516 GBP at NZ Jewellers · As of October 9, 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 E colour (colourless) and SI1 clarity (slightly-included), with a very-good cut grade stated by the retailer rather than the lab and certified by GIA 1559169538. Listed at 15 retailers as of October 27, 2026. 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
E
Colour
SI1
Clarity
Very Good
Cut (retailer stated)

Specifications

Cut (retailer stated)Very Good
PolishExcellent
SymmetryVery Good
FluorescenceNone
Crown angle39.8°
Pavilion angle36.2°
OriginNatural
Grading LabGIA
CertificateGIA 1559169538
Dimensions8.69 × 6.48 × 4.07 mm
L/W Ratio1.34
Girdle conditionFaceted
Top View
8.69 mm6.48 mm1.51 ctE / SI1
OriginNatural
CutVery Good
PolishExcellent
SymmetryVery Good
FluorescenceNone
CertificateGIA 1559169538
Side View
Table 61.0%Crown 39.8°Girdle: MED-THKPavilion 36.2°Culet: NDepth 62.8%

Caratlytics Score

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A
Excellent
Excellent quality and great value
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Price History

Last verified: Oct 27
Current: £5,719 GBP|Low: £4,160 GBP|High: £8,440 GBP|Avg: £5,552 GBP|+1.4%
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
Retailer 14
Retailer 15
Retailer 16
October 16, 2026
Retailer 10£4,160 GBP
Retailer 16£4,220 GBP
Retailer 5£4,495 GBP
Retailer 3£4,575 GBP
Retailer 15£4,758 GBP
Retailer 11£4,776 GBP
Retailer 8£5,640 GBP
Retailer 1£5,719 GBP
Retailer 6£5,722 GBP
Retailer 13£5,722 GBP
Retailer 4£5,798 GBP
Retailer 7£5,910 GBP
Retailer 14£6,191 GBP
Retailer 2£6,327 GBP
Retailer 12£6,909 GBP
Retailer 9£8,014 GBP

27 data points across 16 retailers

15 retailers

A
Retailer 1
-
£4,160 GBP
$5,540 USD
Price last confirmed 15 days ago
A
Retailer 2
-
£4,220 GBP
HK$43,900 HKD
View
Price last confirmed 15 days ago
A
Retailer 3
-
£4,495 GBP
$5,986 USD
View
Price last confirmed 17 days ago
A
Retailer 4
-
£4,575 GBP
$6,093 USD
View
Price last confirmed 14 days ago
B+
Retailer 5
-
£4,758 GBP
$6,336 USD
View
Final sale: no returns
A
Retailer 6
-
£4,758 GBP
$6,336 USD
View
Price last confirmed 17 days ago
B+
Retailer 7
-
£5,154 GBP
$6,864 USD
View
Price last confirmed 22 days ago
B+
Retailer 8
-
£5,326 GBP
$7,092 USD
View
Price last confirmed 29 days ago
B+
Retailer 9
-
£5,640 GBP
A$11,555 AUD
View
Price last confirmed 25 days ago
B+
Retailer 10
-
£5,719 GBP
View
Price last confirmed 13 days ago
B+
Retailer 11
-
£5,798 GBP
$7,722 USD
View
Price last confirmed 15 days ago
B+
Retailer 12
-
£5,947 GBP
$7,920 USD
View
Price last confirmed 20 days ago
B
Retailer 13
-
£6,909 GBP
ZAR 148,646 ZAR
View
Price last confirmed 17 days ago
B
Retailer 14
-
£8,014 GBP
View
Price last confirmed 14 days ago
Most Expensive
B
NZ Jewellers
40ddab6c-7117-4ba7-8e3c-2fc771f8aefa · Oct 9
£9,516 GBP
$12,672 USD
View
Price last confirmed 20 days ago
14 more retailers have this diamond
Prices start from £4,758 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
£4,758 GBP