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Round|Natural|GIA

18.03ct M VS1 Round Natural Diamond

EX • M/VS1 • GIA 5231883468

Certificate GIA 5231883468

Diamond specifications and retailer prices

From $538,860 NZD
₹28,924,065 INR
As of October 31, 2026
Save $295,354 NZD (35%) vs most expensive(unlock to see where)
10 retailers carry this diamond
Most expensive: $834,214 NZD at Aurelinne · As of October 31, 2026
View at Aurelinne

About this 18.03ct natural round diamond

This 18.03ct natural round sits in the over five carat band, graded M colour (faint-tinted) and VS1 clarity (very-slightly-included), with a top-tier cut grade and certified by GIA 5231883468. Listed at 10 retailers as of October 31, 2026, with prices from $538,860 to $834,214, a $295,354 spread on the same certified stone. Aurelinne lists it at $834,214. 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

18.03
Carat
M
Colour
VS1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 5231883468
Dimensions16.52 × 16.65 × 10.51 mm
L/W Ratio1.01
Top View
16.52 mm16.65 mm18.03 ctM / VS1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 5231883468
Side View
Table 57.0%CrownGirdle: MED-STKPavilionCulet: NoneDepth 63.4%

Caratlytics Score

How it works →
A
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 31
Current: $834,214 NZD|Low: $537,634 NZD|High: $834,214 NZD|Avg: $728,277 NZD
Aurelinne
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
November 1, 2026
Retailer 4$538,860 NZD
Retailer 6$652,817 NZD
Retailer 5$665,412 NZD
Retailer 9$699,775 NZD
Retailer 10$741,523 NZD
Retailer 3$741,961 NZD
Retailer 7$772,420 NZD
Retailer 8$803,316 NZD
Retailer 2$812,834 NZD
Aurelinne$834,214 NZD

41 data points across 10 retailers

10 retailers$538,860 NZD to $834,214 NZD

A
Cheapest Retailer
-
$538,860 NZD
₹28,924,065 INR
Retailer 2
-
$652,817 NZD
£289,708 GBP
View
Price last confirmed 32 days ago
B
Retailer 3
-
$699,775 NZD
$394,395 USD
View
B
Retailer 4
-
$714,865 NZD
$402,900 USD
View
B
Retailer 5
-
$741,523 NZD
$417,924 USD
View
Price last confirmed 7 days ago
B
Retailer 6
-
$741,961 NZD
€398,258 EUR
View
B
Retailer 7
-
$772,420 NZD
$435,338 USD
View
B
Retailer 8
-
$803,316 NZD
$452,751 USD
View
B
Retailer 9
-
$812,834 NZD
ZAR 7,400,897 ZAR
View
Most Expensive
B
Aurelinne
a321bb1c-b7c7-466c-b1e3-51871fd173df · Oct 31
$834,214 NZD
$470,165 USD
View
9 more retailers have this diamond
Prices start from $538,860 NZDSave up to $295,354 NZD

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.

A
18.03ct Round
$538,860 NZD