Oval|Natural|GIA

1.50ct E SI1 Oval Natural Diamond

EX • E/SI1 • GIA 1557028814

Certificate GIA 1557028814

Diamond specifications and retailer prices

From £5,528 GBP
$7,361 USD
As of October 27, 2026
Save £4,431 GBP (44%) vs most expensive(unlock to see where)
24 retailers carry this diamond
Most expensive: £11,465 GBP at NZ Jewellers · As of September 29, 2026
View at NZ Jewellers

About this 1.5ct natural oval diamond

This 1.5ct 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 1557028814. Listed at 24 retailers as of October 27, 2026, with a 80% 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

1.50
Carat
E
Colour
SI1
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryVery Good
FluorescenceNone
Crown angle39.45°
Pavilion angle40.6°
OriginNatural
Grading LabGIA
CertificateGIA 1557028814
Dimensions8.82 × 6.34 × 4.07 mm
L/W Ratio1.39
Girdle conditionVery Thick
Key to symbols
Crystal, Feather, Needle
Top View
8.82 mm6.34 mm1.50 ctE / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryVery Good
FluorescenceNone
CertificateGIA 1557028814
Side View
Table 58.0%Crown 39.45°Girdle: THK-VTKPavilion 40.6°Culet: NoneDepth 64.2%

Caratlytics Score

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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 27
Current: £6,614 GBP|Low: £5,255 GBP|High: £9,958 GBP|Avg: £6,763 GBP|+0.4%
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
Retailer 17
Retailer 18
Retailer 19
Retailer 20
Retailer 21
Retailer 22
October 29, 2026
Retailer 3£5,528 GBP
Retailer 7£5,565 GBP
Retailer 20£5,650 GBP
Retailer 4£5,721 GBP
Retailer 14£5,733 GBP
Retailer 6£5,921 GBP
Retailer 11£5,944 GBP
Retailer 18£6,334 GBP
Retailer 2£6,592 GBP
Retailer 1£6,614 GBP
Retailer 9£6,641 GBP
Retailer 12£6,689 GBP
Retailer 19£6,702 GBP
Retailer 8£7,051 GBP
Retailer 22£7,051 GBP
Retailer 10£7,109 GBP
Retailer 13£7,199 GBP
Retailer 5£7,292 GBP
Retailer 17£7,371 GBP
Retailer 21£8,578 GBP
Retailer 15£8,931 GBP
Retailer 16£9,958 GBP

23 data points across 22 retailers

24 retailers£5,528 GBP to £9,958 GBP

A
Cheapest Retailer
-
£5,528 GBP
$7,361 USD
A
Retailer 2
-
£5,565 GBP
$7,411 USD
View
A
Retailer 3
-
£5,650 GBP
$7,524 USD
View
B+
Retailer 4
-
£5,721 GBP
$7,618 USD
View
B+
Retailer 5
-
£5,921 GBP
$7,885 USD
View
B+
Retailer 6
-
£5,944 GBP
$7,915 USD
View
Final sale: no returns
B+
Retailer 7
-
£6,210 GBP
$8,270 USD
View
Price last confirmed 28 days ago
B+
Retailer 8
-
£6,306 GBP
$8,398 USD
View
Price last confirmed 29 days ago
B+
Retailer 9
-
£6,334 GBP
$8,435 USD
View
B+
Retailer 10
-
£6,592 GBP
$8,778 USD
View
B+
Retailer 11
-
£6,614 GBP
View
B+
Retailer 12
-
£6,641 GBP
$8,844 USD
View
B+
Retailer 13
-
£6,689 GBP
View
B+
Retailer 14
-
£6,702 GBP
A$13,730 AUD
View
B+
Retailer 15
-
£7,051 GBP
$9,390 USD
View
B+
Retailer 16
-
£7,051 GBP
$9,390 USD
View
B+
Retailer 17
-
£7,109 GBP
$9,468 USD
View
B+
Retailer 18
-
£7,166 GBP
$9,543 USD
View
Price last confirmed 30 days ago
B+
Retailer 19
-
£7,199 GBP
$9,587 USD
View
B
Retailer 20
-
£7,292 GBP
$9,710 USD
View
B+
Retailer 21
-
£7,371 GBP
€9,349 EUR
View
B
Retailer 22
-
£8,578 GBP
ZAR 184,534 ZAR
View
B
Retailer 23
-
£9,958 GBP
View
Most Expensive
B
NZ Jewellers
0ae8fe05-5ac0-4661-bf0e-40c4806507ce · Sep 29
£11,465 GBP
$15,268 USD
View
Price last confirmed 30 days ago
23 more retailers have this diamond
Prices start from £5,528 GBPSave up to £4,431 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
1.50ct Oval
£5,528 GBP