Oval|Natural|GIA

1.51ct D SI1 Oval Natural Diamond

EX • D/SI1 • GIA 6562231098

Certificate GIA 6562231098

Diamond specifications and retailer prices

From £5,493 GBP

$7,360 USD

As of October 28, 2026

Save £7,051 GBP (56%) vs most expensive(unlock to see where)

27 retailers carry this diamond

Most expensive: £12,544 GBP at NZ Jewellers · As of October 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 D 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 6562231098. Listed at 27 retailers as of October 28, 2026, with prices from £5,493 to £12,544, a £7,051 spread on the same certified stone. NZ Jewellers lists it at £12,544. 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

Colour

SI1

Clarity

Excellent

Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent

PolishExcellent

SymmetryVery Good

FluorescenceNone

Crown angle38.8°

Pavilion angle38.2°

OriginNatural

Grading LabGIA

CertificateGIA 6562231098

Dimensions8.87 × 6.44 × 4.06 mm

L/W Ratio1.38

Girdle conditionFaceted

Culet sizeNone

View GIA Report →View Loupe360 Video →

Top View

OriginNatural

CutExcellent

PolishExcellent

SymmetryVery Good

FluorescenceNone

CertificateGIA 6562231098

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: £12,544 GBP|Low: £5,455 GBP|High: £13,553 GBP|Avg: £7,513 GBP

NZ Jewellers

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October 31, 2026

Retailer 14£5,493 GBP

Retailer 9£5,579 GBP

Retailer 25£5,665 GBP

Retailer 20£5,847 GBP

Retailer 4£5,873 GBP

Retailer 26£5,995 GBP

Retailer 19£6,031 GBP

Retailer 17£6,159 GBP

Retailer 22£6,236 GBP

Retailer 27£6,272 GBP

Retailer 15£6,673 GBP

Retailer 16£6,775 GBP

Retailer 8£6,853 GBP

Retailer 18£6,961 GBP

Retailer 21£6,995 GBP

Retailer 6£7,038 GBP

Retailer 3£7,419 GBP

Retailer 5£7,419 GBP

Retailer 10£7,494 GBP

Retailer 7£7,665 GBP

Retailer 23£7,766 GBP

Retailer 24£7,840 GBP

Retailer 13£8,090 GBP

Retailer 11£8,108 GBP

Retailer 2£9,214 GBP

Retailer 12£10,319 GBP

NZ Jewellers£12,544 GBP

14 data points across 27 retailers

27 retailers£5,493 GBP to £12,544 GBP

Cheapest Retailer

£5,493 GBP

$7,360 USD

Retailer 2

£5,579 GBP

HK$58,400 HKD

View

Retailer 3

£5,665 GBP

$7,590 USD

View

Retailer 4

£5,873 GBP

$7,869 USD

View

Retailer 5

£5,971 GBP

$8,000 USD

View

Price last confirmed 23 days ago

B+

Retailer 6

£5,995 GBP

$8,032 USD

View

Retailer 7

£6,031 GBP

SGD 10,920 SGD

View

Price last confirmed 22 days ago

B+

Retailer 8

£6,159 GBP

$8,253 USD

View

B+

Retailer 9

£6,236 GBP

$8,355 USD

View

B+

Retailer 10

£6,272 GBP

$8,404 USD

View

Final sale: no returns

B+

Retailer 11

£6,673 GBP

$8,941 USD

View

B+

Retailer 12

£6,775 GBP

$9,078 USD

View

B+

Retailer 13

£6,853 GBP

View

Retailer 14

£6,961 GBP

A$14,350 AUD

View

Price last confirmed 8 days ago

B+

Retailer 15

£6,995 GBP

$9,372 USD

View

B+

Retailer 16

£7,038 GBP

View

B+

Retailer 17

£7,419 GBP

$9,940 USD

View

B+

Retailer 18

£7,419 GBP

$9,940 USD

View

Retailer 19

£7,431 GBP

$9,957 USD

View

Retailer 20

£7,494 GBP

$10,042 USD

View

B+

Retailer 21

£7,665 GBP

$10,270 USD

View

B+

Retailer 22

£7,766 GBP

€9,910 EUR

View

B+

Retailer 23

£7,840 GBP

$10,505 USD

View

B+

Retailer 24

£8,090 GBP

$10,840 USD

View

Retailer 25

£9,214 GBP

ZAR 199,444 ZAR

View

Retailer 26

£10,319 GBP

View

Most Expensive

NZ Jewellers

2ec1dfbe-c26d-48b9-9ee7-71427e7e5858 · Oct 30

£12,544 GBP

$16,807 USD

View

26 more retailers have this diamond

Prices start from £5,493 GBPSave up to £7,051 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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1.51ct Oval

£5,493 GBP