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Marquise|Natural|GIA

1.51ct F SI1 Marquise Natural Diamond

VG • F/SI1 • GIA 2554970512

Certificate GIA 2554970512

Diamond specifications and retailer prices

From $15,469 CAD
$11,070 USD
As of November 2, 2026
4 retailers carry this diamond
Most expensive: $19,255 CAD at Diamonds Direct · As of October 23, 2026
View at Diamonds Direct

About this 1.51ct natural marquise diamond

This 1.51ct natural marquise sits in the one-and-a-half to two carat band, graded F colour (colourless) and SI1 clarity (slightly-included), with a very-good cut grade stated by the retailer rather than the lab and certified by GIA 2554970512. Listed at 4 retailers as of November 2, 2026. 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
F
Color
SI1
Clarity
Very Good
Cut (retailer stated)

Specifications

Cut (retailer stated)Very Good
PolishVery Good
SymmetryVery Good
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 2554970512
Dimensions11.47 × 6.04 × 3.67 mm
L/W Ratio1.90
Top View
11.47 mm6.04 mm1.51 ctF / SI1
OriginNatural
CutVery Good
PolishVery Good
SymmetryVery Good
FluorescenceNone
CertificateGIA 2554970512
Side View
Table 62.0%CrownGirdle: THK-VTKPavilionCulet: NoneDepth 60.8%

Caratlytics Score

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B
Good
Decent quality, room for better deals
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Price History

Last verified: Nov 2
Current: $19,255 CAD|Low: $14,093 CAD|High: $19,492 CAD|Avg: $16,834 CAD|-1.2%
Diamonds Direct
Retailer 2
Retailer 3
Retailer 4
Retailer 5
October 29, 2026
Retailer 3$14,093 CAD
Retailer 2$15,469 CAD
Retailer 5$15,852 CAD
Retailer 4$17,743 CAD
Diamonds Direct$19,255 CAD

10 data points across 5 retailers

4 retailers

Retailer 1
-
$14,093 CAD
$10,085 USD
Price last confirmed 15 days ago
B
Retailer 2
-
$15,469 CAD
$11,070 USD
View
Retailer 3
-
$17,743 CAD
$12,697 USD
View
Price last confirmed 11 days ago
Most Expensive
Diamonds Direct
1133391 · Oct 23
$19,255 CAD
$13,779 USD
View
Price last confirmed 10 days ago
3 more retailers have this diamond
Prices start from $15,469 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
$15,469 CAD