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Round|Natural|GIA

1.64ct M SI1 Round Natural Diamond

VG • M/SI1 • GIA 2537433746

Certificate GIA 2537433746

Diamond specifications and retailer prices

From $5,000 CAD
As of November 6, 2026
Save $2,652 CAD (35%) vs most expensive(unlock to see where)
7 retailers carry this diamond
Most expensive: $7,651 CAD at Cape Diamonds · As of November 5, 2026
View at Cape Diamonds

About this 1.64ct natural round diamond

This 1.64ct natural round sits in the one-and-a-half to two carat band, graded M colour (faint-tinted) and SI1 clarity (slightly-included), with a very-good cut grade and certified by GIA 2537433746. Listed at 7 retailers as of November 5, 2026, with prices from $5,000 to $7,651, a $2,652 spread on the same certified stone. Cape Diamonds lists it at $7,651. Cut grade matters more than carat or clarity for visible brilliance. If you can shift budget toward an Excellent or Ideal cut, do it before chasing higher colour or clarity.

The 4Cs

1.64
Carat
M
Color
SI1
Clarity
Very Good
Cut

Specifications

CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle36°
Pavilion angle40.6°
OriginNatural
Grading LabGIA
CertificateGIA 2537433746
Dimensions7.44 × 7.49 × 4.70 mm
L/W Ratio1.01
Star length50%
Lower girdle75%
Top View
7.44 mm7.49 mm1.64 ctM / SI1
OriginNatural
CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 2537433746
Side View
Table 57.0%Crown 36°Girdle: Slightly ThickPavilion 40.6°Culet: NoneDepth 63.0%

Caratlytics Score

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B
Good
Decent quality, room for better deals
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See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 6
Current: $7,651 CAD|Low: $2,806 CAD|High: $7,708 CAD|Avg: $4,426 CAD|+49.6%
Cape Diamonds
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
November 6, 2026
Retailer 7$2,806 CAD
Retailer 8$3,404 CAD
Retailer 6$5,000 CAD
Retailer 5$5,412 CAD
Retailer 4$5,663 CAD
Retailer 2$6,828 CAD
Retailer 3$7,042 CAD
Cape Diamonds$7,651 CAD

37 data points across 8 retailers

7 retailers$5,000 CAD to $7,651 CAD

Retailer 1
-
$2,806 CAD
Price last confirmed 17 days ago
B
Retailer 2
-
$5,000 CAD
View
B
Retailer 3
-
$5,412 CAD
View
B
Retailer 4
-
$5,663 CAD
View
C
Retailer 5
-
$6,828 CAD
View
C
Retailer 6
-
$7,042 CAD
View
Most Expensive
C
Cape Diamonds
cert_2537433746 · Nov 5
$7,651 CAD
ZAR 88,508 ZAR
View
6 more retailers have this diamond
Prices start from $5,000 CADSave up to $2,652 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
1.64ct Round
$5,000 CAD