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Marquise|Natural|GIA

1.51ct I SI1 Marquise Natural Diamond

GD • I/SI1 • GIA 2554673570

Certificate GIA 2554673570

Diamond specifications and retailer prices

From $8,740 CAD
$6,257 USD
As of November 1, 2026
Save $8,495 CAD (49%) vs most expensive(unlock to see where)
15 retailers carry this diamond
Most expensive: $17,235 CAD at NZ Jewellers · As of October 30, 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 I colour (near-colourless) and SI1 clarity (slightly-included), with a standard cut grade stated by the retailer rather than the lab and certified by GIA 2554673570. Listed at 15 retailers as of October 30, 2026, with prices from $8,740 to $17,235, a $8,495 spread on the same certified stone. NZ Jewellers lists it at $17,235. 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
I
Color
SI1
Clarity
Good
Cut (retailer stated)

Specifications

Cut (retailer stated)Good
PolishExcellent
SymmetryVery Good
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 2554673570
Dimensions6.02 × 11.23 × 3.76 mm
L/W Ratio1.87
Girdle conditionFaceted
Culet sizeNone
Key to symbols
Twinning Wisp, Crystal, Cloud, Feather, Needle
Top View
6.02 mm11.23 mm1.51 ctI / SI1
OriginNatural
CutGood
PolishExcellent
SymmetryVery Good
FluorescenceNone
CertificateGIA 2554673570
Side View
Table 54.0%CrownGirdle: THK-VTKPavilionCulet: NoneDepth 62.5%

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 1
Current: $17,235 CAD|Low: $8,740 CAD|High: $17,682 CAD|Avg: $10,691 CAD|-2.5%
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
November 2, 2026
Retailer 13$8,740 CAD
Retailer 14$9,052 CAD
Retailer 6$9,064 CAD
Retailer 7$9,261 CAD
Retailer 8$9,429 CAD
Retailer 4$9,511 CAD
Retailer 3$9,527 CAD
Retailer 9$9,553 CAD
Retailer 2$9,693 CAD
Retailer 5$10,088 CAD
Retailer 11$10,216 CAD
Retailer 15$10,463 CAD
Retailer 12$11,890 CAD
Retailer 10$14,237 CAD
NZ Jewellers$17,235 CAD

32 data points across 15 retailers

15 retailers$8,740 CAD to $17,235 CAD

A
Cheapest Retailer
-
$8,740 CAD
$6,257 USD
B+
Retailer 2
-
$9,052 CAD
$6,480 USD
View
B+
Retailer 3
-
$9,064 CAD
$6,489 USD
View
Retailer 4
-
$9,261 CAD
SGD 8,959 SGD
View
Price last confirmed 21 days ago
B+
Retailer 5
-
$9,429 CAD
$6,750 USD
View
Final sale: no returns
B+
Retailer 6
-
$9,511 CAD
$6,809 USD
View
B+
Retailer 7
-
$9,527 CAD
$6,820 USD
View
B+
Retailer 8
-
$9,553 CAD
£5,385 GBP
View
B+
Retailer 9
-
$9,693 CAD
£5,464 GBP
View
Retailer 10
-
$10,088 CAD
A$11,111 AUD
View
Price last confirmed 11 days ago
B+
Retailer 11
-
$10,216 CAD
$7,313 USD
View
B+
Retailer 12
-
$10,463 CAD
$7,490 USD
View
B
Retailer 13
-
$11,890 CAD
$8,512 USD
View
B
Retailer 14
-
$14,237 CAD
£8,025 GBP
View
Most Expensive
B
NZ Jewellers
c49883fe-d6f6-4c4c-9c3e-40419c4a033f · Oct 30
$17,235 CAD
$12,338 USD
View
14 more retailers have this diamond
Prices start from $8,740 CADSave up to $8,495 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 Marquise
$8,740 CAD