Marquise|Natural|GIA

1.20ct D SI1 Marquise Natural Diamond

EX • D/SI1 • GIA 6555015831

Certificate GIA 6555015831

Diamond specifications and retailer prices

From $7,064 CAD
As of November 6, 2026
Save $6,023 CAD (46%) vs most expensive(unlock to see where)
20 retailers carry this diamond
Most expensive: $15,582 CAD at NZ Jewellers · As of September 30, 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 D colour (colourless) and SI1 clarity (slightly-included), with a top-tier cut grade stated by the retailer rather than the lab and certified by GIA 6555015831. Listed at 20 retailers as of November 2, 2026, with a 85% 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
D
Color
SI1
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryVery Good
FluorescenceFaint
OriginNatural
Grading LabGIA
CertificateGIA 6555015831
Dimensions12.15 × 5.28 × 3.03 mm
L/W Ratio2.30
Top View
12.15 mm5.28 mm1.20 ctD / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryVery Good
FluorescenceFaint
CertificateGIA 6555015831
Side View
Table 64.0%CrownGirdle: THK-ETKPavilionCulet: NoneDepth 57.5%

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: $8,862 CAD|Low: $7,064 CAD|High: $13,890 CAD|Avg: $9,594 CAD|-2.8%
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
Retailer 14
November 6, 2026
Retailer 4$7,064 CAD
Retailer 11$7,286 CAD
Retailer 2$7,680 CAD
Retailer 8$7,798 CAD
Retailer 9$8,278 CAD
Retailer 1$8,862 CAD
Retailer 12$8,862 CAD
Retailer 5$8,871 CAD
Retailer 7$9,157 CAD
Retailer 13$9,668 CAD
Retailer 6$9,895 CAD
Retailer 10$10,632 CAD
Retailer 3$12,164 CAD
Retailer 14$13,087 CAD

38 data points across 14 retailers

20 retailers$7,064 CAD to $13,087 CAD

B+
Cheapest Retailer
-
$7,064 CAD
B+
Retailer 2
-
$7,286 CAD
View
Final sale: no returns
B+
Retailer 3
-
$7,680 CAD
View
B+
Retailer 4
-
$7,798 CAD
View
B+
Retailer 5
-
$8,278 CAD
View
Retailer 6
-
$8,440 CAD
View
Price last confirmed 36 days ago
Retailer 7
-
$8,440 CAD
View
Price last confirmed 36 days ago
B
Retailer 8
-
$8,506 CAD
View
B+
Retailer 9
-
$8,862 CAD
View
B+
Retailer 10
-
$8,862 CAD
View
Retailer 11
-
$8,871 CAD
View
Price last confirmed 27 days ago
B+
Retailer 12
-
$9,157 CAD
View
B
Retailer 13
-
$9,668 CAD
View
Retailer 14
-
$9,739 CAD
View
Price last confirmed 52 days ago
Retailer 15
-
$9,739 CAD
View
Price last confirmed 38 days ago
Retailer 16
-
$9,895 CAD
View
Price last confirmed 14 days ago
B
Retailer 17
-
$10,632 CAD
View
Retailer 18
-
$12,164 CAD
View
Price last confirmed 9 days ago
B
Retailer 19
-
$13,087 CAD
View
Most Expensive
NZ Jewellers
ded45a2b-0ace-4b94-9ef8-4363f099808d · Sep 30
$15,582 CAD
$11,078 USD
View
Price last confirmed 37 days ago
19 more retailers have this diamond
Prices start from $7,064 CADSave up to $6,023 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
$7,064 CAD