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Marquise|Natural|GIA

1.51ct G SI1 Marquise Natural Diamond

VG • G/SI1 • GIA 1558829621

Certificate GIA 1558829621

Diamond specifications and retailer prices

From $12,773 CAD
As of November 6, 2026
Save $9,280 CAD (42%) vs most expensive(unlock to see where)
13 retailers carry this diamond
Most expensive: $22,053 CAD at MOH London · As of November 4, 2026
View at MOH London

About this 1.51ct natural marquise diamond

This 1.51ct natural marquise sits in the one-and-a-half to two carat band, graded G 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 1558829621. Listed at 13 retailers as of November 4, 2026, with prices from $12,773 to $22,053, a $9,280 spread on the same certified stone. MOH London lists it at $22,053. 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
G
Color
SI1
Clarity
Very Good
Cut (retailer stated)

Specifications

Cut (retailer stated)Very Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 1558829621
Dimensions11.17 × 5.88 × 3.79 mm
L/W Ratio1.90
Girdle conditionFaceted
Culet sizeNone
Key to symbols
Feather, Pinpoint
Top View
11.17 mm5.88 mm1.51 ctG / SI1
OriginNatural
CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 1558829621
Side View
Table 60.0%CrownGirdle: THK-VTKPavilionCulet: NoneDepth 64.4%

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: $22,053 CAD|Low: $11,430 CAD|High: $22,348 CAD|Avg: $15,331 CAD|-1.2%
MOH London
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
November 6, 2026
Retailer 8$11,430 CAD
Retailer 5$12,773 CAD
Retailer 6$12,845 CAD
Retailer 11$13,655 CAD
Retailer 7$13,700 CAD
Retailer 4$13,816 CAD
Retailer 12$14,800 CAD
Retailer 10$15,291 CAD
Retailer 2$15,938 CAD
Retailer 15$16,508 CAD
Retailer 14$16,739 CAD
Retailer 16$16,739 CAD
Retailer 9$17,111 CAD
Retailer 3$17,301 CAD
Retailer 13$17,407 CAD
MOH London$22,053 CAD

9 data points across 16 retailers

13 retailers$12,773 CAD to $22,053 CAD

B+
Cheapest Retailer
-
$12,773 CAD
B+
Retailer 2
-
$13,655 CAD
View
B+
Retailer 3
-
$13,816 CAD
View
B
Retailer 4
-
$14,800 CAD
View
B+
Retailer 5
-
$15,291 CAD
View
B
Retailer 6
-
$15,938 CAD
View
B
Retailer 7
-
$16,508 CAD
View
B
Retailer 8
-
$16,739 CAD
View
B
Retailer 9
-
$16,739 CAD
View
B
Retailer 10
-
$17,111 CAD
View
B
Retailer 11
-
$17,301 CAD
View
B
Retailer 12
-
$17,407 CAD
View
Most Expensive
B
MOH London
941042344 · Nov 4
$22,053 CAD
£12,345 GBP
View
12 more retailers have this diamond
Prices start from $12,773 CADSave up to $9,280 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
$12,773 CAD