Marquise|Natural|GIA

1.20ct H SI1 Marquise Natural Diamond

ID • H/SI1 • GIA 2557359146

Certificate GIA 2557359146

Diamond specifications and retailer prices

From $7,833 CAD
As of November 5, 2026
Save $1,345 CAD (15%) vs most expensive(unlock to see where)
19 retailers carry this diamond
Most expensive: $14,513 CAD at NZ Jewellers · As of October 24, 2026
View at NZ Jewellers

About this 1.2ct natural marquise diamond

This 1.2ct natural marquise sits in the classic one-carat band, graded H colour (near-colourless) and SI1 clarity (slightly-included), with a top-tier cut grade stated by the retailer rather than the lab and certified by GIA 2557359146. Listed at 19 retailers as of November 5, 2026, with a relatively tight 17% spread, which is unusual at this carat range and suggests competitive pricing across the listings. SI-grade stones are eye-clean roughly 60 to 70% of the time at this carat range. Check the inclusion plot on the cert and ask the retailer for high-resolution video before buying.

The 4Cs

1.20
Carat
H
Color
SI1
Clarity
Ideal
Cut (retailer stated)

Specifications

Cut (retailer stated)Ideal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle38.24°
Pavilion angle41.41°
OriginNatural
Grading LabGIA
CertificateGIA 2557359146
Dimensions10.40 × 5.52 × 3.52 mm
L/W Ratio1.88
Girdle conditionVery Thick
Key to symbols
Crystal, Feather, Needle, Indented Natural
Top View
10.40 mm5.52 mm1.20 ctH / SI1
OriginNatural
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 2557359146
Side View
Table 63.0%Crown 38.24°Girdle: Slightly ThickPavilion 41.41°Culet: NoneDepth 63.8%

Caratlytics Score

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B
Good
Decent quality, room for better deals
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Price History

Last verified: Nov 5
Current: $14,513 CAD|Low: $6,856 CAD|High: $14,513 CAD|Avg: $8,710 CAD
NZ Jewellers
Retailer 2
Retailer 3
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Retailer 5
Retailer 6
Retailer 7
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Retailer 11
Retailer 12
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Retailer 18
Retailer 19
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Retailer 21
Retailer 22
October 27, 2026
Retailer 6$6,856 CAD
Retailer 5$6,908 CAD
Retailer 3$6,913 CAD
Retailer 14$7,061 CAD
Retailer 20$7,317 CAD
Retailer 21$7,357 CAD
Retailer 11$7,766 CAD
Retailer 8$7,833 CAD
Retailer 17$7,861 CAD
Retailer 19$7,861 CAD
Retailer 22$7,861 CAD
Retailer 15$8,178 CAD
Retailer 9$8,261 CAD
Retailer 13$8,274 CAD
Retailer 18$8,473 CAD
Retailer 10$9,178 CAD
Retailer 16$9,431 CAD
Retailer 12$9,571 CAD
Retailer 2$10,566 CAD
Retailer 7$12,699 CAD
Retailer 4$12,800 CAD
NZ Jewellers$14,513 CAD

8 data points across 22 retailers

19 retailers$7,833 CAD to $9,178 CAD

Retailer 1
-
$6,856 CAD
Price last confirmed 12 days ago
Retailer 2
-
$6,908 CAD
View
Price last confirmed 12 days ago
Retailer 3
-
$6,913 CAD
View
Price last confirmed 13 days ago
Retailer 4
-
$7,317 CAD
View
Price last confirmed 13 days ago
Retailer 5
-
$7,357 CAD
View
Price last confirmed 11 days ago
Retailer 6
-
$7,766 CAD
View
Price last confirmed 13 days ago
B
Retailer 7
-
$7,833 CAD
View
Retailer 8
-
$7,861 CAD
View
Price last confirmed 12 days ago
Retailer 9
-
$7,861 CAD
View
Price last confirmed 13 days ago
Retailer 10
-
$7,861 CAD
View
Price last confirmed 13 days ago
B
Retailer 11
-
$8,261 CAD
View
Retailer 12
-
$8,274 CAD
View
Price last confirmed 11 days ago
B
Retailer 13
-
$9,178 CAD
View
Retailer 14
-
$9,431 CAD
View
Price last confirmed 12 days ago
Retailer 15
-
$9,571 CAD
View
Price last confirmed 29 days ago
Retailer 16
-
$10,566 CAD
View
Price last confirmed 11 days ago
Retailer 17
-
$12,699 CAD
View
Price last confirmed 15 days ago
Retailer 18
-
$12,800 CAD
View
Price last confirmed 12 days ago
Most Expensive
NZ Jewellers
1844168c-8e69-4a0c-b643-6b09d37bb58f · Oct 24
$14,513 CAD
$10,318 USD
View
Price under review
18 more retailers have this diamond
Prices start from $7,833 CADSave up to $1,345 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
1.20ct Marquise
$7,833 CAD