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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 $22,768 SGD
As of November 1, 2026
Save $14,251 SGD (38%) vs most expensive(unlock to see where)
9 retailers carry this diamond
Most expensive: $37,019 SGD 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 $22,768 to $37,019, a $14,251 spread on the same certified stone. NZ Jewellers lists it at $37,019. 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
Colour
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: $37,019 SGD|Low: $22,768 SGD|High: $37,019 SGD|Avg: $28,302 SGD
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$22,768 SGD
Retailer 9$23,677 SGD
Retailer 4$24,022 SGD
Retailer 6$26,131 SGD
Retailer 5$27,438 SGD
Retailer 8$28,309 SGD
Retailer 7$29,397 SGD
Retailer 2$30,361 SGD
Retailer 10$32,869 SGD
NZ Jewellers$37,019 SGD

23 data points across 10 retailers

9 retailers$22,768 SGD to $37,019 SGD

B
Cheapest Retailer
-
$22,768 SGD
B
Retailer 2
-
$24,022 SGD
View
Retailer 3
-
$26,131 SGD
View
Price last confirmed 8 days ago
C
Retailer 4
-
$27,438 SGD
View
C
Retailer 5
-
$28,309 SGD
View
C
Retailer 6
-
$29,397 SGD
View
C
Retailer 7
-
$30,361 SGD
View
C
Retailer 8
-
$30,450 SGD
View
Most Expensive
C
NZ Jewellers
aa35406b-0523-45f1-9395-f1aad5eda815 · Nov 5
$37,019 SGD
$28,982 USD
View
8 more retailers have this diamond
Prices start from $22,768 SGDSave up to $14,251 SGD

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
$22,768 SGD