Oval|Natural|GIA

6.50ct G SI1 Oval Natural Diamond

ID • G/SI1 • GIA 6552542988

Certificate GIA 6552542988

Diamond specifications and retailer prices

From $224,701 AUD

$157,840 USD

As of October 28, 2026

Save $180,531 AUD (45%) vs most expensive(unlock to see where)

22 retailers carry this diamond

Most expensive: $405,232 AUD at MOH London · As of November 1, 2026

View at MOH London

About this 6.5ct natural oval diamond

This 6.5ct natural oval sits in the over five carat band, graded G 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 6552542988. Listed at 22 retailers as of October 28, 2026, with prices from $224,701 to $405,232, a $180,531 spread on the same certified stone. MOH London lists it at $405,232. 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

6.50

Carat

Colour

SI1

Clarity

Ideal

Cut (retailer stated)

Specifications

Cut (retailer stated)Ideal

PolishExcellent

SymmetryExcellent

FluorescenceFaint

Crown angle42.37°

Pavilion angle37.64°

OriginNatural

Grading LabGIA

CertificateGIA 6552542988

Dimensions14.27 × 10.18 × 6.55 mm

L/W Ratio1.40

Culet sizeNone

Key to symbols

Feather, Crystal, Cloud, Needle

View GIA Report →View Loupe360 Video →

Top View

OriginNatural

CutIdeal

PolishExcellent

SymmetryExcellent

FluorescenceFaint

CertificateGIA 6552542988

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: Oct 28

Current: $405,232 AUD|Low: $188,999 AUD|High: $407,401 AUD|Avg: $247,866 AUD|+18.9%

MOH London

Retailer 2

Retailer 3

Retailer 4

Retailer 5

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Retailer 7

Retailer 8

Retailer 9

Retailer 10

Retailer 11

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Retailer 13

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Retailer 16

Retailer 17

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Retailer 24

November 1, 2026

Retailer 14$188,999 AUD

Retailer 12$201,115 AUD

Retailer 10$205,112 AUD

Retailer 15$206,396 AUD

Retailer 21$224,701 AUD

Retailer 17$230,835 AUD

Retailer 16$231,360 AUD

Retailer 3$232,941 AUD

Retailer 9$233,523 AUD

Retailer 7$236,326 AUD

Retailer 11$237,310 AUD

Retailer 5$250,347 AUD

Retailer 19$254,204 AUD

Retailer 4$259,471 AUD

Retailer 23$270,282 AUD

Retailer 24$270,282 AUD

Retailer 8$271,475 AUD

Retailer 2$280,015 AUD

Retailer 22$281,093 AUD

Retailer 6$291,903 AUD

Retailer 18$304,687 AUD

Retailer 13$313,949 AUD

Retailer 20$321,094 AUD

MOH London$405,232 AUD

25 data points across 24 retailers

22 retailers$224,701 AUD to $405,232 AUD

Retailer 1

$188,999 AUD

HK$1,037,200 HKD

Price last confirmed 27 days ago

Retailer 2

$201,115 AUD

View

Price last confirmed 29 days ago

B+

Retailer 3

$224,701 AUD

$157,840 USD

View

Retailer 4

$230,835 AUD

$162,149 USD

View

Price last confirmed 27 days ago

Retailer 5

$231,360 AUD

$162,518 USD

View

Price last confirmed 30 days ago

B+

Retailer 6

$232,941 AUD

$163,628 USD

View

Retailer 7

$233,523 AUD

$164,037 USD

View

Final sale: no returns

B+

Retailer 8

$236,326 AUD

$166,006 USD

View

Retailer 9

$242,671 AUD

$170,463 USD

View

Price last confirmed 61 days ago

Retailer 10

$250,347 AUD

$175,855 USD

View

B+

Retailer 11

$254,204 AUD

£140,602 GBP

View

Retailer 12

$259,471 AUD

$182,264 USD

View

Price last confirmed 7 days ago

Retailer 13

$270,282 AUD

$189,858 USD

View

Retailer 14

$270,282 AUD

$189,858 USD

View

Retailer 15

$271,475 AUD

$190,696 USD

View

Retailer 16

$280,015 AUD

£154,878 GBP

View

Retailer 17

$281,093 AUD

$197,452 USD

View

Retailer 18

$291,903 AUD

$205,046 USD

View

Retailer 19

$304,687 AUD

€203,834 EUR

View

Retailer 20

$313,949 AUD

ZAR 3,562,706 ZAR

View

Retailer 21

$321,094 AUD

$225,551 USD

View

Most Expensive

MOH London

219EBFA70 · Nov 1

$405,232 AUD

£224,136 GBP

View

21 more retailers have this diamond

Prices start from $224,701 AUDSave up to $180,531 AUD

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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