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Marquise|Natural|GIA

1.51ct I SI1 Marquise Natural Diamond

VG • I/SI1 • GIA 2235994080

Certificate GIA 2235994080

Diamond specifications and retailer prices

From $9,382 CAD
£5,286 GBP
As of November 2, 2026
Save $8,832 CAD (48%) vs most expensive(unlock to see where)
11 retailers carry this diamond
Most expensive: $18,214 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 very-good cut grade stated by the retailer rather than the lab and certified by GIA 2235994080. Listed at 11 retailers as of October 30, 2026, with prices from $9,382 to $18,214, a $8,832 spread on the same certified stone. NZ Jewellers lists it at $18,214. 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
Very Good
Cut (retailer stated)

Specifications

Cut (retailer stated)Very Good
PolishExcellent
SymmetryVery Good
FluorescenceStrong
Crown angle38.28°
Pavilion angle43.32°
OriginNatural
Grading LabGIA
CertificateGIA 2235994080
Dimensions10.60 × 5.95 × 4.04 mm
L/W Ratio1.78
Girdle conditionVery Thick
Key to symbols
Feather, Crystal, Needle, Pinpoint
Top View
10.60 mm5.95 mm1.51 ctI / SI1
OriginNatural
CutVery Good
PolishExcellent
SymmetryVery Good
FluorescenceStrong
CertificateGIA 2235994080
Side View
Table 63.0%Crown 38.28°Girdle: THK-VTKPavilion 43.32°Culet: NoneDepth 67.8%

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 2
Current: $18,214 CAD|Low: $8,587 CAD|High: $19,010 CAD|Avg: $12,042 CAD|-4.2%
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
November 2, 2026
Retailer 13$8,587 CAD
Retailer 7$9,382 CAD
Retailer 4$9,586 CAD
Retailer 10$9,796 CAD
Retailer 11$10,047 CAD
Retailer 6$10,333 CAD
Retailer 3$10,787 CAD
Retailer 5$10,787 CAD
Retailer 12$10,890 CAD
Retailer 2$10,947 CAD
Retailer 8$12,319 CAD
Retailer 9$15,175 CAD
NZ Jewellers$18,214 CAD

16 data points across 13 retailers

11 retailers$9,382 CAD to $18,214 CAD

Retailer 1
-
$8,587 CAD
$6,145 USD
Price last confirmed 12 days ago
B+
Retailer 2
-
$9,382 CAD
£5,286 GBP
View
B+
Retailer 3
-
$9,796 CAD
$7,010 USD
View
B+
Retailer 4
-
$10,047 CAD
$7,190 USD
View
B+
Retailer 5
-
$10,333 CAD
£5,822 GBP
View
Retailer 6
-
$10,787 CAD
$7,719 USD
View
Price last confirmed 11 days ago
B+
Retailer 7
-
$10,890 CAD
$7,793 USD
View
B+
Retailer 8
-
$10,947 CAD
$7,834 USD
View
B
Retailer 9
-
$12,319 CAD
$8,816 USD
View
B
Retailer 10
-
$15,175 CAD
£8,551 GBP
View
Most Expensive
C
NZ Jewellers
ac89687c-962d-4a3e-b7d5-3dd3a6415160 · Oct 30
$18,214 CAD
$13,034 USD
View
10 more retailers have this diamond
Prices start from $9,382 CADSave up to $8,832 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
$9,382 CAD