Round|Natural|GIA

18.03ct M VS1 Round Natural Diamond

EX • M/VS1 • GIA 5231883468

Certificate GIA 5231883468

Diamond specifications and retailer prices

From €271,841 EUR
₹28,924,065 INR
As of October 31, 2026
Save €148,999 EUR (35%) vs most expensive(unlock to see where)
10 retailers carry this diamond
Most expensive: €420,840 EUR 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 €271,841 to €420,840, a €148,999 spread on the same certified stone. Aurelinne lists it at €420,840. 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: €420,840 EUR|Low: €271,223 EUR|High: €420,840 EUR|Avg: €367,398 EUR
Aurelinne
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
November 1, 2026
Retailer 4€271,841 EUR
Retailer 6€329,330 EUR
Retailer 5€335,684 EUR
Retailer 9€353,019 EUR
Retailer 10€374,080 EUR
Retailer 3€374,301 EUR
Retailer 7€389,667 EUR
Retailer 8€405,253 EUR
Retailer 2€410,055 EUR
Aurelinne€420,840 EUR

41 data points across 10 retailers

10 retailers€271,841 EUR to €420,840 EUR

A
Cheapest Retailer
-
€271,841 EUR
₹28,924,065 INR
Retailer 2
-
€329,330 EUR
£289,708 GBP
View
Price last confirmed 32 days ago
B
Retailer 3
-
€353,019 EUR
$394,395 USD
View
B
Retailer 4
-
€360,632 EUR
$402,900 USD
View
B
Retailer 5
-
€374,080 EUR
$417,924 USD
View
Price last confirmed 7 days ago
B
Retailer 6
-
€374,301 EUR
View
B
Retailer 7
-
€389,667 EUR
$435,338 USD
View
B
Retailer 8
-
€405,253 EUR
$452,751 USD
View
B
Retailer 9
-
€410,055 EUR
ZAR 7,400,897 ZAR
View
Most Expensive
B
Aurelinne
a321bb1c-b7c7-466c-b1e3-51871fd173df · Oct 31
€420,840 EUR
$470,165 USD
View
9 more retailers have this diamond
Prices start from €271,841 EURSave up to €148,999 EUR

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
€271,841 EUR