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1.51ct H SI1 Round Natural Diamond

EX • H/SI1 • GIA 5566171647

Certificate GIA 5566171647

Diamond specifications and retailer prices

From $6,888 CAD
As of November 5, 2026
Save $6,911 CAD (50%) vs most expensive(unlock to see where)
9 retailers carry this diamond
Most expensive: $13,799 CAD at Wholesale Diamonds Direct · As of November 4, 2026
View at Wholesale Diamonds Direct

About this 1.51ct natural round diamond

This 1.51ct natural round sits in the one-and-a-half to two carat band, graded H colour (near-colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by GIA 5566171647. Listed at 9 retailers as of November 4, 2026, with prices from $6,888 to $13,799, a $6,911 spread on the same certified stone. Wholesale Diamonds Direct lists it at $13,799. SI-grade stones are eye-clean roughly 60 to 70% of the time at this carat range. Check the inclusion plot on the cert and ask the retailer for high-resolution video before buying.

The 4Cs

1.51
Carat
H
Color
SI1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle36°
Pavilion angle41°
OriginNatural
Grading LabGIA
CertificateGIA 5566171647
Dimensions7.27 × 4.55 × 4.55 mm
L/W Ratio1.60
Culet sizeNone
Top View
7.27 mm4.55 mm1.51 ctH / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 5566171647
Side View
Table 59.0%Crown 36°Girdle: MED-STKPavilion 41°Culet: NoneDepth 62.4%

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: Nov 5
Current: $10,572 CAD|Low: $6,849 CAD|High: $14,769 CAD|Avg: $9,964 CAD|-7.7%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Wholesale Diamonds Direct
November 6, 2026
Retailer 2$6,888 CAD
Retailer 7$7,456 CAD
Retailer 8$8,237 CAD
Retailer 4$8,371 CAD
Retailer 3$9,421 CAD
Retailer 6$9,421 CAD
Retailer 1$10,572 CAD
Retailer 5$12,854 CAD
Wholesale Diamonds Direct$13,799 CAD

34 data points across 9 retailers

9 retailers$6,888 CAD to $13,799 CAD

A
Cheapest Retailer
-
$6,888 CAD
A
Retailer 2
-
$7,456 CAD
View
B+
Retailer 3
-
$8,237 CAD
View
B+
Retailer 4
-
$8,371 CAD
View
B+
Retailer 5
-
$9,421 CAD
View
B+
Retailer 6
-
$9,421 CAD
View
B+
Retailer 7
-
$10,572 CAD
View
B
Retailer 8
-
$12,854 CAD
View
Most Expensive
B
Wholesale Diamonds Direct
378293298 · Nov 4
$13,799 CAD
$9,880 USD
View
8 more retailers have this diamond
Prices start from $6,888 CADSave up to $6,911 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.

A
1.51ct Round
$6,888 CAD