Oval|Natural|GIA

1.51ct E SI1 Oval Natural Diamond

EX • E/SI1 • GIA 6542053783

Certificate GIA 6542053783

Diamond specifications and retailer prices

From £6,239 GBP
₹791,219 INR
As of October 29, 2026
Save £4,489 GBP (42%) vs most expensive(unlock to see where)
21 retailers carry this diamond
Most expensive: £11,388 GBP at NZ Jewellers · As of September 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 E colour (colourless) and SI1 clarity (slightly-included), with a top-tier cut grade stated by the retailer rather than the lab and certified by GIA 6542053783. Listed at 21 retailers as of October 29, 2026, with a 72% spread between the cheapest and most expensive listing. That is exactly the kind of price-discovery gap Carat Hunter was built to surface. SI-grade stones are eye-clean roughly 60 to 70% of the time at this carat range. Check the inclusion plot on the cert and ask the retailer for high-resolution video before buying.

The 4Cs

1.51
Carat
E
Colour
SI1
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle34.99°
Pavilion angle40°
OriginNatural
Grading LabGIA
CertificateGIA 6542053783
Dimensions9.18 × 6.38 × 4.06 mm
L/W Ratio1.44
Top View
9.18 mm6.38 mm1.51 ctE / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 6542053783
Side View
Table 59.0%Crown 34.99°Girdle: THK-VTKPavilion 40°Culet: NoneDepth 63.6%

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: Oct 29
Current: £7,475 GBP|Low: £6,227 GBP|High: £10,799 GBP|Avg: £7,937 GBP|-0.0%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
October 29, 2026
Retailer 4£6,239 GBP
Retailer 11£6,892 GBP
Retailer 3£6,998 GBP
Retailer 1£7,475 GBP
Retailer 9£7,542 GBP
Retailer 10£7,583 GBP
Retailer 7£8,301 GBP
Retailer 6£8,596 GBP
Retailer 2£8,979 GBP
Retailer 8£9,922 GBP
Retailer 5£10,728 GBP

33 data points across 11 retailers

21 retailers£6,239 GBP to £10,728 GBP

A
Cheapest Retailer
-
£6,239 GBP
₹791,219 INR
B+
Retailer 2
-
£6,892 GBP
$9,178 USD
View
B+
Retailer 3
-
£6,914 GBP
$9,207 USD
View
B+
Retailer 4
-
£6,998 GBP
$9,319 USD
View
B+
Retailer 5
-
£7,132 GBP
$9,497 USD
View
B+
Retailer 6
-
£7,460 GBP
$9,935 USD
View
B+
Retailer 7
-
£7,475 GBP
View
B
Retailer 8
-
£7,542 GBP
$10,043 USD
View
Final sale: no returns
B
Retailer 9
-
£7,542 GBP
$10,044 USD
View
Price last confirmed 17 days ago
B+
Retailer 10
-
£7,583 GBP
A$15,536 AUD
View
Price last confirmed 25 days ago
B+
Retailer 11
-
£8,155 GBP
$10,860 USD
View
B+
Retailer 12
-
£8,171 GBP
$10,881 USD
View
Price last confirmed 37 days ago
B+
Retailer 13
-
£8,171 GBP
$10,881 USD
View
Price last confirmed 21 days ago
B
Retailer 14
-
£8,301 GBP
$11,054 USD
View
B+
Retailer 15
-
£8,596 GBP
€10,902 EUR
View
B
Retailer 16
-
£8,979 GBP
$11,957 USD
View
B
Retailer 17
-
£9,428 GBP
$12,555 USD
View
Price last confirmed 20 days ago
B
Retailer 18
-
£9,428 GBP
$12,555 USD
View
Price last confirmed 37 days ago
B
Retailer 19
-
£9,922 GBP
ZAR 213,455 ZAR
View
Price last confirmed 17 days ago
B
Retailer 20
-
£10,728 GBP
View
Most Expensive
B
NZ Jewellers
c1c1720f-1bfa-4368-bb32-1914ca9ab0ec · Sep 30
£11,388 GBP
$15,165 USD
View
Price last confirmed 29 days ago
20 more retailers have this diamond
Prices start from £6,239 GBPSave up to £4,489 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
£6,239 GBP