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Round|Natural|GIA

1.51ct H SI1 Round Natural Diamond

EX • H/SI1 • GIA 6545694423

Certificate GIA 6545694423

Diamond specifications and retailer prices

From $7,829 CAD
As of November 6, 2026
Save $10,019 CAD (56%) vs most expensive(unlock to see where)
19 retailers carry this diamond
Most expensive: $17,849 CAD at NZ Jewellers · As of November 5, 2026
View at NZ Jewellers

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 6545694423. Listed at 19 retailers as of November 5, 2026, with prices from $7,829 to $17,849, a $10,019 spread on the same certified stone. NZ Jewellers lists it at $17,849. 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 angle35°
Pavilion angle40.6°
OriginNatural
Grading LabGIA
CertificateGIA 6545694423
Dimensions7.33 × 7.35 × 4.52 mm
L/W Ratio1.00
Top View
7.33 mm7.35 mm1.51 ctH / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 6545694423
Side View
Table 57.0%Crown 35°Girdle: MED-STKPavilion 40.6°Culet: NoneDepth 61.6%

Caratlytics Score

How it works →
A
Excellent
Excellent quality and great value
Unlock full score analysis
See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 6
Current: $17,849 CAD|Low: $7,758 CAD|High: $17,849 CAD|Avg: $10,966 CAD
NZ Jewellers
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
Retailer 13
Retailer 14
Retailer 15
Retailer 16
Retailer 17
Retailer 18
November 6, 2026
Retailer 16$7,829 CAD
Retailer 7$8,431 CAD
Retailer 5$8,924 CAD
Retailer 9$8,924 CAD
Retailer 18$8,959 CAD
Retailer 4$9,669 CAD
Retailer 8$9,817 CAD
Retailer 12$9,895 CAD
Retailer 17$10,289 CAD
Retailer 15$10,568 CAD
Retailer 6$11,156 CAD
Retailer 10$11,759 CAD
Retailer 11$11,761 CAD
Retailer 3$11,969 CAD
Retailer 2$12,946 CAD
Retailer 13$13,021 CAD
Retailer 14$14,833 CAD
NZ Jewellers$17,849 CAD

33 data points across 18 retailers

19 retailers$7,829 CAD to $17,849 CAD

A
Cheapest Retailer
-
$7,829 CAD
B+
Retailer 2
-
$8,424 CAD
View
B+
Retailer 3
-
$8,431 CAD
View
B+
Retailer 4
-
$8,924 CAD
View
Final sale: no returns
Retailer 5
-
$8,924 CAD
View
Price last confirmed 8 days ago
B+
Retailer 6
-
$8,959 CAD
View
B+
Retailer 7
-
$9,669 CAD
View
B+
Retailer 8
-
$9,817 CAD
View
B+
Retailer 9
-
$9,895 CAD
View
Retailer 10
-
$10,289 CAD
View
Price last confirmed 15 days ago
B+
Retailer 11
-
$10,568 CAD
View
B+
Retailer 12
-
$11,156 CAD
View
Retailer 13
-
$11,759 CAD
View
Price last confirmed 14 days ago
B+
Retailer 14
-
$11,761 CAD
View
B
Retailer 15
-
$11,969 CAD
View
B
Retailer 16
-
$12,946 CAD
View
B
Retailer 17
-
$13,021 CAD
View
B
Retailer 18
-
$14,833 CAD
View
Most Expensive
B
NZ Jewellers
7238d773-89f0-446b-9262-05b231d63538 · Nov 5
$17,849 CAD
$12,780 USD
View
18 more retailers have this diamond
Prices start from $7,829 CADSave up to $10,019 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
$7,829 CAD