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Marquise|Natural|GIA

1.20ct G SI1 Marquise Natural Diamond

ID • G/SI1 • GIA 6545625677

Certificate GIA 6545625677

Diamond specifications and retailer prices

From $9,188 CAD
As of November 6, 2026
Save $5,560 CAD (38%) vs most expensive(unlock to see where)
12 retailers carry this diamond
Most expensive: $18,282 CAD at NZ Jewellers · As of November 5, 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 G 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 6545625677. Listed at 12 retailers as of November 4, 2026, with a 61% spread between the cheapest and most expensive listing. That is exactly the kind of price-discovery gap Carat Hunter was built to surface. 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
G
Color
SI1
Clarity
Ideal
Cut (retailer stated)

Specifications

Cut (retailer stated)Ideal
PolishExcellent
SymmetryVery Good
FluorescenceFaint
OriginNatural
Grading LabGIA
CertificateGIA 6545625677
Dimensions11.89 × 5.23 × 3.31 mm
L/W Ratio2.27
Top View
11.89 mm5.23 mm1.20 ctG / SI1
OriginNatural
CutIdeal
PolishExcellent
SymmetryVery Good
FluorescenceFaint
CertificateGIA 6545625677
Side View
Table 59.0%CrownGirdle: ThickPavilionCulet: NoneDepth 63.3%

Caratlytics Score

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

Price History

Last verified: Nov 6
Current: $18,282 CAD|Low: $9,071 CAD|High: $18,282 CAD|Avg: $11,384 CAD|+1.7%
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 6, 2026
Retailer 6$9,188 CAD
Retailer 5$9,393 CAD
Retailer 2$9,448 CAD
Retailer 11$10,029 CAD
Retailer 9$10,203 CAD
Retailer 7$10,348 CAD
Retailer 4$10,444 CAD
Retailer 8$10,867 CAD
Retailer 13$11,040 CAD
Retailer 3$11,851 CAD
Retailer 10$13,336 CAD
Retailer 12$14,748 CAD
NZ Jewellers$18,282 CAD

15 data points across 13 retailers

12 retailers$9,188 CAD to $14,748 CAD

B
Cheapest Retailer
-
$9,188 CAD
B
Retailer 2
-
$9,448 CAD
View
B
Retailer 3
-
$10,029 CAD
View
B
Retailer 4
-
$10,203 CAD
View
B
Retailer 5
-
$10,348 CAD
View
Retailer 6
-
$10,444 CAD
View
Price last confirmed 35 days ago
B
Retailer 7
-
$10,867 CAD
View
B
Retailer 8
-
$11,040 CAD
View
B
Retailer 9
-
$11,851 CAD
View
B
Retailer 10
-
$13,336 CAD
View
B
Retailer 11
-
$14,748 CAD
View
Most Expensive
NZ Jewellers
7c049642-ce40-4b7b-9fc2-ef4b83bc0466 · Nov 5
$18,282 CAD
$12,997 USD
View
Price under review
11 more retailers have this diamond
Prices start from $9,188 CADSave up to $5,560 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
$9,188 CAD