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Marquise|Natural|GIA

1.51ct H SI1 Marquise Natural Diamond

VG • H/SI1 • GIA 1558321176

Certificate GIA 1558321176

Diamond specifications and retailer prices

From $12,506 CAD
As of November 6, 2026
Save $8,826 CAD (41%) vs most expensive(unlock to see where)
18 retailers carry this diamond
Most expensive: $21,332 CAD at NZ Jewellers · As of November 5, 2026
View at NZ Jewellers

About this 1.51ct natural marquise diamond

This 1.51ct natural marquise sits in the one-and-a-half to two carat band, graded H colour (near-colourless) and SI1 clarity (slightly-included), with a very-good cut grade stated by the retailer rather than the lab and certified by GIA 1558321176. Listed at 18 retailers as of November 5, 2026, with prices from $12,506 to $21,332, a $8,826 spread on the same certified stone. NZ Jewellers lists it at $21,332. 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

1.51
Carat
H
Color
SI1
Clarity
Very Good
Cut (retailer stated)

Specifications

Cut (retailer stated)Very Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle40.1°
Pavilion angle40.97°
OriginNatural
Grading LabGIA
CertificateGIA 1558321176
Dimensions11.00 × 5.94 × 3.90 mm
L/W Ratio1.85
Culet sizeNone
Top View
11.00 mm5.94 mm1.51 ctH / SI1
OriginNatural
CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 1558321176
Side View
Table 58.0%Crown 40.1°Girdle: MED-THKPavilion 40.97°Culet: NoneDepth 65.7%

Caratlytics Score

How it works →
B+
Very Good
Strong quality and value balance
Unlock full score analysis
See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 6
Current: $15,705 CAD|Low: $10,564 CAD|High: $19,936 CAD|Avg: $13,072 CAD|+12.7%
Retailer 1
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
Retailer 19
Retailer 20
Retailer 21
November 6, 2026
Retailer 14$10,564 CAD
Retailer 5$10,635 CAD
Retailer 13$10,981 CAD
Retailer 7$11,053 CAD
Retailer 11$11,156 CAD
Retailer 4$11,205 CAD
Retailer 18$12,506 CAD
Retailer 17$12,527 CAD
Retailer 9$13,065 CAD
Retailer 20$13,353 CAD
Retailer 16$14,003 CAD
Retailer 6$14,807 CAD
Retailer 12$14,893 CAD
Retailer 2$15,219 CAD
Retailer 21$15,219 CAD
Retailer 15$15,439 CAD
Retailer 1$15,705 CAD
Retailer 3$15,726 CAD
Retailer 10$16,301 CAD
Retailer 8$18,002 CAD
Retailer 19$19,936 CAD

29 data points across 21 retailers

18 retailers$12,506 CAD to $21,332 CAD

Retailer 1
-
$10,564 CAD
Price last confirmed 25 days ago
Retailer 2
-
$11,053 CAD
View
Price last confirmed 16 days ago
Retailer 3
-
$11,156 CAD
View
Price last confirmed 18 days ago
Retailer 4
-
$11,205 CAD
View
Price last confirmed 14 days ago
B+
Retailer 5
-
$12,506 CAD
View
B
Retailer 6
-
$12,527 CAD
View
Retailer 7
-
$13,065 CAD
View
Price last confirmed 17 days ago
B
Retailer 8
-
$13,353 CAD
View
B
Retailer 9
-
$14,003 CAD
View
B
Retailer 10
-
$14,893 CAD
View
B
Retailer 11
-
$15,219 CAD
View
B
Retailer 12
-
$15,219 CAD
View
B
Retailer 13
-
$15,439 CAD
View
B
Retailer 14
-
$15,705 CAD
View
B
Retailer 15
-
$15,726 CAD
View
Retailer 16
-
$16,301 CAD
View
Price last confirmed 17 days ago
B
Retailer 17
-
$19,936 CAD
View
Most Expensive
B
NZ Jewellers
a2d2d991-c6f1-4507-ab22-f9d53492dd11 · Nov 5
$21,332 CAD
$15,166 USD
View
17 more retailers have this diamond
Prices start from $12,506 CADSave up to $8,826 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+
1.51ct Marquise
$12,506 CAD