Round|Natural|GIA

0.55ct F SI1 Round Natural Diamond

EX • F/SI1 • GIA 6555731928

Certificate GIA 6555731928

Diamond specifications and retailer prices

From £396 GBP

₹50,599 INR

As of November 2, 2026

Save £1,258 GBP (76%) vs most expensive(unlock to see where)

21 retailers carry this diamond

Most expensive: £1,654 GBP at NZ Jewellers · As of November 2, 2026

View at NZ Jewellers

About this 0.55ct natural round diamond

This 0.55ct natural round sits in the half to three-quarter carat band, graded F colour (colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by GIA 6555731928. Listed at 21 retailers as of November 2, 2026, with prices from £396 to £1,654, a £1,258 spread on the same certified stone. NZ Jewellers lists it at £1,654. 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

0.55

Carat

Colour

SI1

Clarity

Excellent

Cut

Specifications

CutExcellent

PolishExcellent

SymmetryExcellent

FluorescenceNone

Crown angle35°

Pavilion angle41.2°

OriginNatural

Grading LabGIA

CertificateGIA 6555731928

Dimensions5.18 × 5.20 × 3.28 mm

L/W Ratio1.00

Girdle conditionFaceted

Culet sizeNone

View GIA Report →View Loupe360 Video →

Top View

OriginNatural

CutExcellent

PolishExcellent

SymmetryExcellent

FluorescenceNone

CertificateGIA 6555731928

Side View

Caratlytics Score

How it works →

Excellent

Excellent quality and great value

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See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 2

Current: £1,654 GBP|Low: £396 GBP|High: £1,753 GBP|Avg: £707 GBP|-5.6%

NZ Jewellers

Retailer 2

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Retailer 20

November 2, 2026

Retailer 2£396 GBP

Retailer 3£448 GBP

Retailer 5£487 GBP

Retailer 20£503 GBP

Retailer 6£510 GBP

Retailer 11£515 GBP

Retailer 16£522 GBP

Retailer 19£528 GBP

Retailer 18£548 GBP

Retailer 7£553 GBP

Retailer 12£572 GBP

Retailer 8£609 GBP

Retailer 4£629 GBP

Retailer 13£635 GBP

Retailer 17£647 GBP

Retailer 14£709 GBP

Retailer 10£743 GBP

Retailer 15£1,218 GBP

Retailer 9£1,533 GBP

NZ Jewellers£1,654 GBP

18 data points across 20 retailers

21 retailers£396 GBP to £1,654 GBP

Cheapest Retailer

£396 GBP

₹50,599 INR

Retailer 2

£448 GBP

HK$4,700 HKD

View

Retailer 3

£487 GBP

$653 USD

View

Final sale: no returns

Retailer 4

£503 GBP

A$1,038 AUD

View

Retailer 5

£510 GBP

SGD 924 SGD

View

Retailer 6

£515 GBP

€658 EUR

View

Price last confirmed 7 days ago

Retailer 7

£522 GBP

$700 USD

View

Retailer 8

£528 GBP

$708 USD

View

Retailer 9

£548 GBP

$735 USD

View

Retailer 10

£553 GBP

SGD 1,002 SGD

View

Retailer 11

£559 GBP

$750 USD

View

Price last confirmed 113 days ago

Retailer 12

£572 GBP

$768 USD

View

Price last confirmed 16 days ago

Retailer 13

£609 GBP

$817 USD

View

Retailer 14

£629 GBP

View

Retailer 15

£635 GBP

View

Retailer 16

£647 GBP

$868 USD

View

B+

Retailer 17

£709 GBP

€906 EUR

View

Retailer 18

£743 GBP

$998 USD

View

Price last confirmed 7 days ago

Retailer 19

£1,218 GBP

View

Retailer 20

£1,533 GBP

CA$2,857 CAD

View

Most Expensive

NZ Jewellers

b94884b0-2152-4354-9930-00b15adf1e95 · Nov 2

£1,654 GBP

$2,220 USD

View

20 more retailers have this diamond

Prices start from £396 GBPSave up to £1,258 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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0.55ct Round

£396 GBP