Oval|Natural|GIA

1.50ct I SI1 Oval Natural Diamond

EX • I/SI1 • GIA 6565186595

Certificate GIA 6565186595

Diamond specifications and retailer prices

From £3,915 GBP

$5,245 USD

As of October 28, 2026

Save £4,837 GBP (55%) vs most expensive(unlock to see where)

31 retailers carry this diamond

Most expensive: £8,751 GBP at NZ Jewellers · As of October 30, 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 I colour (near-colourless) and SI1 clarity (slightly-included), with a top-tier cut grade stated by the retailer rather than the lab and certified by GIA 6565186595. Listed at 31 retailers as of October 28, 2026, with prices from £3,915 to £8,751, a £4,837 spread on the same certified stone. NZ Jewellers lists it at £8,751. 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

Colour

SI1

Clarity

Excellent

Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent

PolishVery Good

SymmetryVery Good

FluorescenceNone

OriginNatural

Grading LabGIA

CertificateGIA 6565186595

Dimensions8.99 × 6.39 × 3.98 mm

L/W Ratio1.41

Key to symbols

Feather, Crystal, Cloud, Needle, Indented Natural, Natural

View GIA Report →View Loupe360 Video →

Top View

OriginNatural

CutExcellent

PolishVery Good

SymmetryVery Good

FluorescenceNone

CertificateGIA 6565186595

Side View

Caratlytics Score

How it works →

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 28

Current: £8,751 GBP|Low: £3,915 GBP|High: £8,751 GBP|Avg: £5,170 GBP

NZ Jewellers

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Retailer 31

November 1, 2026

Retailer 6£3,915 GBP

Retailer 21£3,976 GBP

Retailer 7£4,088 GBP

Retailer 11£4,135 GBP

Retailer 4£4,138 GBP

Retailer 8£4,189 GBP

Retailer 14£4,375 GBP

Retailer 10£4,407 GBP

Retailer 16£4,537 GBP

Retailer 19£4,644 GBP

Retailer 9£4,670 GBP

Retailer 3£4,740 GBP

Retailer 30£4,740 GBP

Retailer 31£4,740 GBP

Retailer 29£4,827 GBP

Retailer 15£4,925 GBP

Retailer 22£4,930 GBP

Retailer 2£4,965 GBP

Retailer 24£5,018 GBP

Retailer 5£5,079 GBP

Retailer 20£5,180 GBP

Retailer 18£5,277 GBP

Retailer 23£5,277 GBP

Retailer 12£5,354 GBP

Retailer 27£5,383 GBP

Retailer 25£5,448 GBP

Retailer 28£5,470 GBP

Retailer 26£6,429 GBP

Retailer 17£7,586 GBP

Retailer 13£7,709 GBP

NZ Jewellers£8,751 GBP

33 data points across 31 retailers

31 retailers£3,915 GBP to £8,751 GBP

Cheapest Retailer

£3,915 GBP

$5,245 USD

Retailer 2

£3,976 GBP

$5,328 USD

View

B+

Retailer 3

£4,088 GBP

$5,477 USD

View

B+

Retailer 4

£4,135 GBP

$5,540 USD

View

B+

Retailer 5

£4,138 GBP

$5,544 USD

View

B+

Retailer 6

£4,189 GBP

$5,613 USD

View

B+

Retailer 7

£4,375 GBP

$5,862 USD

View

Final sale: no returns

B+

Retailer 8

£4,407 GBP

$5,905 USD

View

B+

Retailer 9

£4,537 GBP

CA$8,443 CAD

View

B+

Retailer 10

£4,644 GBP

$6,222 USD

View

B+

Retailer 11

£4,670 GBP

$6,257 USD

View

B+

Retailer 12

£4,740 GBP

$6,351 USD

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B+

Retailer 13

£4,740 GBP

$6,351 USD

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B+

Retailer 14

£4,740 GBP

$6,351 USD

View

B+

Retailer 15

£4,827 GBP

$6,468 USD

View

B+

Retailer 16

£4,925 GBP

$6,599 USD

View

B+

Retailer 17

£4,930 GBP

$6,606 USD

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B+

Retailer 18

£4,965 GBP

View

B+

Retailer 19

£5,018 GBP

View

Retailer 20

£5,079 GBP

A$10,469 AUD

View

Price last confirmed 10 days ago

Retailer 21

£5,180 GBP

$6,940 USD

View

Retailer 22

£5,277 GBP

$7,070 USD

View

Retailer 23

£5,277 GBP

$7,070 USD

View

Retailer 24

£5,354 GBP

$7,173 USD

View

Retailer 25

£5,383 GBP

€6,869 EUR

View

Retailer 26

£5,448 GBP

$7,300 USD

View

Retailer 27

£5,470 GBP

$7,329 USD

View

Retailer 28

£6,429 GBP

ZAR 139,157 ZAR

View

Retailer 29

£7,586 GBP

$10,164 USD

View

Price last confirmed 9 days ago

Retailer 30

£7,709 GBP

View

Most Expensive

NZ Jewellers

927a22e0-5234-4c1d-a049-04fa05b1346b · Oct 30

£8,751 GBP

$11,726 USD

View

30 more retailers have this diamond

Prices start from £3,915 GBPSave up to £4,837 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.

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