Oval|Natural|GIA

1.51ct E SI1 Oval Natural Diamond

ID • E/SI1 • GIA 3565191044

Certificate GIA 3565191044

Diamond specifications and retailer prices

From £6,251 GBP
$8,324 USD
As of October 29, 2026
Save £3,238 GBP (34%) vs most expensive(unlock to see where)
15 retailers carry this diamond
Most expensive: £11,328 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 3565191044. Listed at 15 retailers as of October 29, 2026, with a 52% 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
Ideal
Cut (retailer stated)

Specifications

Cut (retailer stated)Ideal
PolishExcellent
SymmetryExcellent
FluorescenceFaint
OriginNatural
Grading LabGIA
CertificateGIA 3565191044
Dimensions8.90 × 6.35 × 4.03 mm
L/W Ratio1.40
Girdle conditionFaceted
Culet sizeNone
Key to symbols
Cloud, Feather, Crystal, Needle
Top View
8.90 mm6.35 mm1.51 ctE / SI1
OriginNatural
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceFaint
CertificateGIA 3565191044
Side View
Table 60.0%CrownGirdle: MED-THKPavilionCulet: NoneDepth 63.5%

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: Oct 29
Current: £6,356 GBP|Low: £5,492 GBP|High: £9,552 GBP|Avg: £7,005 GBP|-0.9%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
October 30, 2026
Retailer 8£5,509 GBP
Retailer 2£6,251 GBP
Retailer 4£6,302 GBP
Retailer 3£6,308 GBP
Retailer 1£6,356 GBP
Retailer 7£6,379 GBP
Retailer 10£6,409 GBP
Retailer 11£6,780 GBP
Retailer 6£7,389 GBP
Retailer 9£8,173 GBP
Retailer 5£9,489 GBP

36 data points across 11 retailers

15 retailers£6,251 GBP to £9,489 GBP

Retailer 1
-
£5,509 GBP
€6,987 EUR
Price last confirmed 6 days ago
B+
Retailer 2
-
£6,251 GBP
$8,324 USD
View
Final sale: no returns
B+
Retailer 3
-
£6,302 GBP
View
Retailer 4
-
£6,308 GBP
$8,400 USD
View
Price last confirmed 25 days ago
B+
Retailer 5
-
£6,356 GBP
View
B+
Retailer 6
-
£6,379 GBP
A$13,070 AUD
View
B+
Retailer 7
-
£6,409 GBP
$8,535 USD
View
Retailer 8
-
£6,773 GBP
$9,019 USD
View
Price last confirmed 28 days ago
B+
Retailer 9
-
£6,780 GBP
$9,029 USD
View
Retailer 10
-
£6,877 GBP
$9,158 USD
View
Price last confirmed 30 days ago
B+
Retailer 11
-
£7,389 GBP
€9,371 EUR
View
Retailer 12
-
£7,815 GBP
$10,407 USD
View
Price last confirmed 31 days ago
Retailer 13
-
£8,173 GBP
ZAR 175,837 ZAR
View
Price last confirmed 7 days ago
B
Retailer 14
-
£9,489 GBP
View
Most Expensive
NZ Jewellers
6d00b19d-9ce4-48bc-b5a5-8bc65cbdbde3 · Sep 30
£11,328 GBP
$15,085 USD
View
Price last confirmed 29 days ago
14 more retailers have this diamond
Prices start from £6,251 GBPSave up to £3,238 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
£6,251 GBP