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Round|Natural|GIA

5.18ct J VS1 Round Natural Diamond

EX • J/VS1 • GIA 5221567953

Certificate GIA 5221567953

Diamond specifications and retailer prices

From $138,360 AUD
As of October 31, 2026
Save $19,233 AUD (12%) vs most expensive(unlock to see where)
5 retailers carry this diamond
Most expensive: $231,795 AUD at MOH London · As of October 15, 2026
View at MOH London

About this 5.18ct natural round diamond

This 5.18ct natural round sits in the over five carat band, graded J colour (near-colourless) and VS1 clarity (very-slightly-included), with a top-tier cut grade and certified by GIA 5221567953. Listed at 5 retailers as of October 30, 2026, with a relatively tight 14% spread, which is unusual at this carat range and suggests competitive pricing across the listings. At this carat range, natural pricing varies dramatically across retailers, so the cross-retailer spread on this exact stone is your single best indicator of fair price.

The 4Cs

5.18
Carat
J
Colour
VS1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle32.5°
Pavilion angle41.6°
OriginNatural
Grading LabGIA
CertificateGIA 5221567953
Dimensions11.21 × 11.30 × 6.81 mm
L/W Ratio1.01
Top View
11.21 mm11.30 mm5.18 ctJ / VS1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 5221567953
Side View
Table 59.0%Crown 32.5°Girdle: THN-MEDPavilion 41.6°Culet: NoneDepth 60.5%

Caratlytics Score

How it works →
B+
Very Good
Strong quality and value balance
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See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Oct 31
Current: $231,795 AUD|Low: $138,360 AUD|High: $232,100 AUD|Avg: $163,588 AUD
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
October 15, 2026
Retailer 7$138,360 AUD
Retailer 2$151,153 AUD
Retailer 4$152,510 AUD
Retailer 6$152,510 AUD
Retailer 5$157,593 AUD
Retailer 3$176,538 AUD
MOH London$231,795 AUD

6 data points across 7 retailers

5 retailers$138,360 AUD to $157,593 AUD

B+
Cheapest Retailer
-
$138,360 AUD
B
Retailer 2
-
$152,510 AUD
$107,130 USD
View
B
Retailer 3
-
$152,510 AUD
$107,130 USD
View
B
Retailer 4
-
$157,593 AUD
$110,700 USD
View
Most Expensive
MOH London
D540369FF · Oct 15
$231,795 AUD
£128,207 GBP
View
Price last confirmed 17 days ago
4 more retailers have this diamond
Prices start from $138,360 AUDSave up to $19,233 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.

B+
5.18ct Round
$138,360 AUD