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Round|Natural|GIA

3.18ct M I1 Round Natural Diamond

EX • M/I1 • GIA 5231021840

Certificate GIA 5231021840

Diamond specifications and retailer prices

From $24,894 CAD
As of November 1, 2026
Save $15,582 CAD (38%) vs most expensive(unlock to see where)
9 retailers carry this diamond
Most expensive: $40,476 CAD at NZ Jewellers · As of November 5, 2026
View at NZ Jewellers

About this 3.18ct natural round diamond

This 3.18ct natural round sits in the three to five carat band, graded M colour (faint-tinted) and I1 clarity (included), with a top-tier cut grade and certified by GIA 5231021840. Listed at 9 retailers as of November 1, 2026, with prices from $24,894 to $40,476, a $15,582 spread on the same certified stone. NZ Jewellers lists it at $40,476. 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

3.18
Carat
M
Color
I1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishVery Good
SymmetryVery Good
FluorescenceFaint
OriginNatural
Grading LabGIA
CertificateGIA 5231021840
Dimensions9.57 × 9.54 × 5.76 mm
L/W Ratio1.00
Top View
9.57 mm9.54 mm3.18 ctM / I1
OriginNatural
CutExcellent
PolishVery Good
SymmetryVery Good
FluorescenceFaint
CertificateGIA 5231021840
Side View
Table 56.0%CrownGirdle: THN-STKPavilionCulet: NoneDepth 60.3%

Caratlytics Score

How it works →
B
Good
Decent quality, room for better deals
Unlock full score analysis
See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 1
Current: $40,476 CAD|Low: $24,894 CAD|High: $40,476 CAD|Avg: $30,945 CAD
NZ Jewellers
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
November 5, 2026
Retailer 3$24,894 CAD
Retailer 9$25,889 CAD
Retailer 4$26,266 CAD
Retailer 6$28,572 CAD
Retailer 5$30,000 CAD
Retailer 8$30,953 CAD
Retailer 7$32,143 CAD
Retailer 2$33,197 CAD
Retailer 10$35,939 CAD
NZ Jewellers$40,476 CAD

23 data points across 10 retailers

9 retailers$24,894 CAD to $40,476 CAD

B
Cheapest Retailer
-
$24,894 CAD
B
Retailer 2
-
$26,266 CAD
View
Retailer 3
-
$28,572 CAD
View
Price last confirmed 8 days ago
C
Retailer 4
-
$30,000 CAD
View
C
Retailer 5
-
$30,953 CAD
View
C
Retailer 6
-
$32,143 CAD
View
C
Retailer 7
-
$33,197 CAD
View
C
Retailer 8
-
$33,294 CAD
View
Most Expensive
C
NZ Jewellers
aa35406b-0523-45f1-9395-f1aad5eda815 · Nov 5
$40,476 CAD
$28,982 USD
View
8 more retailers have this diamond
Prices start from $24,894 CADSave up to $15,582 CAD

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
3.18ct Round
$24,894 CAD