Round|Natural|GIA

18.03ct M VS1 Round Natural Diamond

EX • M/VS1 • GIA 5231883468

Certificate GIA 5231883468

Diamond specifications and retailer prices

From $303,703 USD
₹28,924,065 INR
As of October 31, 2026
Save $166,462 USD (35%) vs most expensive(unlock to see where)
10 retailers carry this diamond
Most expensive: $470,165 USD 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 $303,703 to $470,165, a $166,462 spread on the same certified stone. Aurelinne lists it at $470,165. 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
Color
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
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See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Oct 31
Current: $470,165 USD|Low: $303,012 USD|High: $470,165 USD|Avg: $409,752 USD
Aurelinne
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
October 31, 2026
Retailer 2$303,703 USD
Retailer 7$367,929 USD
Retailer 6$375,028 USD
Retailer 10$394,395 USD
Retailer 3$402,900 USD
Retailer 11$417,924 USD
Retailer 4$421,129 USD
Retailer 8$435,338 USD
Retailer 9$452,751 USD
Retailer 5$455,681 USD
Aurelinne$470,165 USD

40 data points across 11 retailers

10 retailers$303,703 USD to $470,165 USD

A
Cheapest Retailer
-
$303,703 USD
₹28,924,065 INR
Retailer 2
-
$367,929 USD
£289,708 GBP
View
Price last confirmed 31 days ago
B
Retailer 3
-
$394,395 USD
View
B
Retailer 4
-
$402,900 USD
View
B
Retailer 5
-
$417,924 USD
View
B
Retailer 6
-
$421,129 USD
€401,075 EUR
View
B
Retailer 7
-
$435,338 USD
View
B
Retailer 8
-
$452,751 USD
View
B
Retailer 9
-
$455,681 USD
ZAR 7,361,559 ZAR
View
Most Expensive
B
Aurelinne
a321bb1c-b7c7-466c-b1e3-51871fd173df · Oct 31
$470,165 USD
View
9 more retailers have this diamond
Prices start from $303,703 USDSave up to $166,462 USD

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
$303,703 USD