Marquise|Natural|GIA

1.20ct D SI1 Marquise Natural Diamond

EX • D/SI1 • GIA 2556683633

Certificate GIA 2556683633

Diamond specifications and retailer prices

From $5,847 USD
As of November 5, 2026
Save $200 USD (3%) vs most expensive(unlock to see where)
14 retailers carry this diamond
Most expensive: $11,281 USD 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 2556683633. Listed at 14 retailers as of November 4, 2026, with a relatively tight 3% 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
D
Color
SI1
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishVery Good
SymmetryVery Good
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 2556683633
Dimensions10.86 × 5.72 × 3.41 mm
L/W Ratio1.90
Girdle conditionFaceted
Culet sizeNone
Key to symbols
Crystal, Feather, Cavity, Needle, Indented Natural, Natural
Top View
10.86 mm5.72 mm1.20 ctD / SI1
OriginNatural
CutExcellent
PolishVery Good
SymmetryVery Good
FluorescenceNone
CertificateGIA 2556683633
Side View
Table 60.0%CrownGirdle: MED-THKPavilionCulet: NoneDepth 59.7%

Caratlytics Score

How it works →
B+
Very Good
Strong quality and value balance
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See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 5
Current: $5,847 USD|Low: $4,928 USD|High: $10,057 USD|Avg: $6,638 USD|+0.2%
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
Retailer 15
Retailer 16
Retailer 17
November 5, 2026
Retailer 16$4,928 USD
Retailer 13$5,300 USD
Retailer 15$5,465 USD
Retailer 6$5,666 USD
Retailer 4$5,756 USD
Retailer 1$5,847 USD
Retailer 5$6,047 USD
Retailer 11$6,113 USD
Retailer 9$6,160 USD
Retailer 7$6,226 USD
Retailer 10$6,405 USD
Retailer 2$6,495 USD
Retailer 17$6,782 USD
Retailer 12$7,208 USD
Retailer 8$8,114 USD
Retailer 14$8,782 USD
Retailer 3$9,875 USD

22 data points across 17 retailers

14 retailers$5,847 USD to $6,047 USD

Retailer 1
-
$4,928 USD
Price last confirmed 26 days ago
Retailer 2
-
$5,465 USD
View
Price last confirmed 29 days ago
Retailer 3
-
$5,666 USD
View
Price last confirmed 28 days ago
B+
Retailer 4
-
$5,847 USD
View
B
Retailer 5
-
$6,047 USD
View
Retailer 6
-
$6,114 USD
View
Price last confirmed 29 days ago
Retailer 7
-
$6,495 USD
View
Price last confirmed 33 days ago
Retailer 8
-
$6,745 USD
View
Price last confirmed 39 days ago
Retailer 9
-
$6,782 USD
View
Price last confirmed 28 days ago
Retailer 10
-
$7,783 USD
View
Price last confirmed 38 days ago
Retailer 11
-
$8,114 USD
View
Price last confirmed 42 days ago
Retailer 12
-
$8,782 USD
View
Price last confirmed 26 days ago
Retailer 13
-
$9,875 USD
View
Price last confirmed 32 days ago
Most Expensive
NZ Jewellers
bf39d3d5-c702-4716-9393-974cdb4c8b3d · Sep 30
$11,281 USD
View
Price last confirmed 37 days ago
13 more retailers have this diamond
Prices start from $5,847 USDSave up to $200 USD

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
$5,847 USD