Marquise|Natural|GIA

1.50ct H SI1 Marquise Natural Diamond

VG • H/SI1 • GIA 1425687574

Certificate GIA 1425687574

Diamond specifications and retailer prices

From $14,318 CAD
$10,250 USD
As of October 31, 2026
Save $684 CAD (5%) vs most expensive(unlock to see where)
10 retailers carry this diamond
Most expensive: $20,498 CAD at NZ Jewellers · As of September 30, 2026
View at NZ Jewellers

About this 1.5ct natural marquise diamond

This 1.5ct 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 1425687574. Listed at 10 retailers as of October 30, 2026, with a relatively tight 5% spread, which is unusual at this carat range and suggests competitive pricing across the listings. 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

1.50
Carat
H
Color
SI1
Clarity
Very Good
Cut (retailer stated)

Specifications

Cut (retailer stated)Very Good
PolishVery Good
SymmetryVery Good
FluorescenceMedium
OriginNatural
Grading LabGIA
CertificateGIA 1425687574
Dimensions10.67 × 5.90 × 3.74 mm
L/W Ratio1.81
Key to symbols
Twinning Wisp, Crystal, Feather, Indented Natural, Needle, Natural
Top View
10.67 mm5.90 mm1.50 ctH / SI1
OriginNatural
CutVery Good
PolishVery Good
SymmetryVery Good
FluorescenceMedium
CertificateGIA 1425687574
Side View
Table 55.0%CrownGirdle: MED-ETKPavilionCulet: NoneDepth 63.5%

Caratlytics Score

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B
Good
Decent quality, room for better deals
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See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Oct 31
Current: $14,318 CAD|Low: $11,515 CAD|High: $20,098 CAD|Avg: $14,897 CAD|-5.4%
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
October 31, 2026
Retailer 3$11,515 CAD
Retailer 2$12,298 CAD
Retailer 4$12,402 CAD
Retailer 9$13,585 CAD
Retailer 11$13,696 CAD
Retailer 13$14,102 CAD
Retailer 1$14,318 CAD
Retailer 6$14,514 CAD
Retailer 7$15,003 CAD
Retailer 8$15,204 CAD
Retailer 5$16,187 CAD
Retailer 10$17,732 CAD
Retailer 12$19,438 CAD

16 data points across 13 retailers

10 retailers$14,318 CAD to $15,003 CAD

Retailer 1
-
$11,329 CAD
$8,110 USD
Price last confirmed 34 days ago
Retailer 2
-
$13,324 CAD
$9,538 USD
View
Price last confirmed 34 days ago
Retailer 3
-
$13,585 CAD
A$14,961 AUD
View
Price last confirmed 32 days ago
Retailer 4
-
$14,102 CAD
$10,095 USD
View
Price last confirmed 32 days ago
B
Retailer 5
-
$14,318 CAD
$10,250 USD
View
B
Retailer 6
-
$14,514 CAD
$10,390 USD
View
B
Retailer 7
-
$15,003 CAD
$10,740 USD
View
Retailer 8
-
$15,373 CAD
$11,005 USD
View
Price last confirmed 34 days ago
Retailer 9
-
$17,732 CAD
ZAR 205,071 ZAR
View
Price last confirmed 32 days ago
Most Expensive
NZ Jewellers
27c6c49f-0179-40f6-9b59-f890339ea0f5 · Sep 30
$20,498 CAD
$14,674 USD
View
Price last confirmed 32 days ago
9 more retailers have this diamond
Prices start from $14,318 CADSave up to $684 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
1.50ct Marquise
$14,318 CAD