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Oval|Natural|GIA

1.50ct E SI1 Oval Natural Diamond

ID • E/SI1 • GIA 1553391703

Certificate GIA 1553391703

Diamond specifications and retailer prices

From £4,827 GBP
$6,428 USD
As of October 26, 2026
Save £5,667 GBP (54%) vs most expensive(unlock to see where)
12 retailers carry this diamond
Most expensive: £10,493 GBP at NZ Jewellers · As of October 23, 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 1553391703. Listed at 12 retailers as of October 23, 2026, with prices from £4,827 to £10,493, a £5,667 spread on the same certified stone. NZ Jewellers lists it at £10,493. 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
Ideal
Cut (retailer stated)

Specifications

Cut (retailer stated)Ideal
PolishExcellent
SymmetryExcellent
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 1553391703
Dimensions6.31 × 8.66 × 4.08 mm
L/W Ratio1.37
Girdle conditionFaceted
Culet sizeNone
Key to symbols
Crystal, Needle
Top View
6.31 mm8.66 mm1.50 ctE / SI1
OriginNatural
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 1553391703
Side View
Table 63.0%CrownGirdle: STK-VTKPavilionCulet: NoneDepth 64.6%

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 26
Current: £10,493 GBP|Low: £4,753 GBP|High: £10,493 GBP|Avg: £6,286 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
October 26, 2026
Retailer 14£4,753 GBP
Retailer 15£4,827 GBP
Retailer 12£5,094 GBP
Retailer 3£5,247 GBP
Retailer 4£5,497 GBP
Retailer 6£5,557 GBP
Retailer 8£5,684 GBP
Retailer 10£5,772 GBP
Retailer 9£5,877 GBP
Retailer 5£6,377 GBP
Retailer 13£6,559 GBP
Retailer 2£6,819 GBP
Retailer 7£7,118 GBP
Retailer 11£8,756 GBP
NZ Jewellers£10,493 GBP

25 data points across 15 retailers

12 retailers£4,827 GBP to £10,493 GBP

A
Retailer 1
-
£4,753 GBP
$6,330 USD
Price last confirmed 8 days ago
A
Retailer 2
-
£4,827 GBP
$6,428 USD
View
A
Retailer 3
-
£5,094 GBP
$6,783 USD
View
A
Retailer 4
-
£5,497 GBP
$7,320 USD
View
A
Retailer 5
-
£5,684 GBP
$7,569 USD
View
A
Retailer 6
-
£5,772 GBP
$7,686 USD
View
A
Retailer 7
-
£5,877 GBP
View
B+
Retailer 8
-
£6,377 GBP
$8,492 USD
View
B+
Retailer 9
-
£6,559 GBP
$8,734 USD
View
B+
Retailer 10
-
£6,819 GBP
€8,648 EUR
View
B+
Retailer 11
-
£8,756 GBP
View
Most Expensive
B
NZ Jewellers
d4ecb5a0-d0a0-4a68-8ea7-528204860501 · Oct 23
£10,493 GBP
$13,974 USD
View
11 more retailers have this diamond
Prices start from £4,827 GBPSave up to £5,667 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
£4,827 GBP