Oval|Natural|GIA

1.51ct I SI1 Oval Natural Diamond

EX • I/SI1 • GIA 6552615943

Certificate GIA 6552615943

Diamond specifications and retailer prices

From £4,112 GBP

$5,518 USD

As of November 2, 2026

Save £638 GBP (13%) vs most expensive(unlock to see where)

29 retailers carry this diamond

Most expensive: £8,000 GBP at NZ Jewellers · As of October 20, 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 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 6552615943. Listed at 29 retailers as of October 27, 2026, with a relatively tight 16% spread, which is unusual at this carat range and suggests competitive pricing across the listings. 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

SymmetryExcellent

FluorescenceNone

Crown angle40.12°

Pavilion angle38.97°

OriginNatural

Grading LabGIA

CertificateGIA 6552615943

Dimensions8.90 × 6.39 × 3.98 mm

L/W Ratio1.39

Culet sizeNone

View GIA Report →View Loupe360 Video →

Top View

OriginNatural

CutExcellent

PolishExcellent

SymmetryExcellent

FluorescenceNone

CertificateGIA 6552615943

Side View

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: Nov 2

Current: £8,000 GBP|Low: £2,549 GBP|High: £8,000 GBP|Avg: £4,441 GBP

NZ Jewellers

Retailer 2

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Retailer 36

October 26, 2026

Retailer 30£2,549 GBP

Retailer 27£3,319 GBP

Retailer 25£3,327 GBP

Retailer 26£3,588 GBP

Retailer 34£3,592 GBP

Retailer 24£3,658 GBP

Retailer 35£3,736 GBP

Retailer 17£3,779 GBP

Retailer 2£3,781 GBP

Retailer 6£3,828 GBP

Retailer 20£3,999 GBP

Retailer 14£4,046 GBP

Retailer 18£4,193 GBP

Retailer 21£4,258 GBP

Retailer 12£4,277 GBP

Retailer 3£4,333 GBP

Retailer 8£4,333 GBP

Retailer 15£4,333 GBP

Retailer 10£4,411 GBP

Retailer 7£4,526 GBP

Retailer 22£4,535 GBP

Retailer 31£4,547 GBP

Retailer 13£4,583 GBP

Retailer 23£4,750 GBP

Retailer 11£4,836 GBP

Retailer 32£4,836 GBP

Retailer 19£4,899 GBP

Retailer 36£4,904 GBP

Retailer 33£4,993 GBP

Retailer 16£4,999 GBP

Retailer 28£5,542 GBP

Retailer 29£5,788 GBP

Retailer 5£5,806 GBP

Retailer 9£6,931 GBP

Retailer 4£7,085 GBP

NZ Jewellers£8,000 GBP

23 data points across 36 retailers

29 retailers£4,112 GBP to £4,750 GBP

Retailer 1

£3,592 GBP

$4,820 USD

Price last confirmed 12 days ago

Retailer 2

£3,658 GBP

$4,909 USD

View

Price last confirmed 7 days ago

Retailer 3

£3,736 GBP

$5,014 USD

View

Price last confirmed 12 days ago

Retailer 4

£3,779 GBP

$5,071 USD

View

Price last confirmed 13 days ago

Retailer 5

£3,781 GBP

$5,074 USD

View

Price last confirmed 7 days ago

Retailer 6

£3,828 GBP

$5,137 USD

View

Price last confirmed 12 days ago

Retailer 7

£3,876 GBP

$5,201 USD

View

Price last confirmed 14 days ago

Retailer 8

£4,046 GBP

$5,430 USD

View

Price last confirmed 12 days ago

B+

Retailer 9

£4,112 GBP

$5,518 USD

View

B+

Retailer 10

£4,193 GBP

CA$7,815 CAD

View

Retailer 11

£4,258 GBP

$5,714 USD

View

Price last confirmed 7 days ago

Retailer 12

£4,277 GBP

$5,739 USD

View

Price last confirmed 15 days ago

Retailer 13

£4,333 GBP

$5,815 USD

View

Price last confirmed 16 days ago

Retailer 14

£4,333 GBP

$5,815 USD

View

Price last confirmed 13 days ago

Retailer 15

£4,333 GBP

$5,815 USD

View

Price last confirmed 17 days ago

Retailer 16

£4,411 GBP

$5,919 USD

View

Price last confirmed 12 days ago

Retailer 17

£4,526 GBP

$6,073 USD

View

Price last confirmed 13 days ago

Retailer 18

£4,583 GBP

View

Price last confirmed 11 days ago

B+

Retailer 19

£4,750 GBP

$6,374 USD

View

Retailer 20

£4,836 GBP

$6,490 USD

View

Price last confirmed 13 days ago

Retailer 21

£4,836 GBP

$6,490 USD

View

Price last confirmed 14 days ago

Retailer 22

£4,899 GBP

$6,575 USD

View

Price last confirmed 12 days ago

Retailer 23

£4,993 GBP

$6,700 USD

View

Price last confirmed 12 days ago

Retailer 24

£4,999 GBP

$6,709 USD

View

Price last confirmed 12 days ago

Retailer 25

£5,788 GBP

$7,767 USD

View

Price last confirmed 38 days ago

Retailer 26

£5,806 GBP

ZAR 125,871 ZAR

View

Price last confirmed 16 days ago

Retailer 27

£6,931 GBP

$9,302 USD

View

Price last confirmed 13 days ago

Retailer 28

£7,085 GBP

View

Price last confirmed 12 days ago

Most Expensive

NZ Jewellers

4c5ebf8d-add2-4a1c-aa2d-7fa88683f094 · Oct 20

£8,000 GBP

$10,735 USD

View

Price last confirmed 12 days ago

28 more retailers have this diamond

Prices start from £4,112 GBPSave up to £638 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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