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Marquise|Natural|GIA

1.20ct D SI1 Marquise Natural Diamond

EX • D/SI1 • GIA 1565632687

Certificate GIA 1565632687

Diamond specifications and retailer prices

From €3,335 EUR
As of November 6, 2026
Save €1,260 EUR (27%) vs most expensive(unlock to see where)
5 retailers carry this diamond
Most expensive: €4,595 EUR at Taylor and Hart · As of November 6, 2026
View at Taylor and Hart

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 1565632687. Listed at 5 retailers as of November 6, 2026, with prices from €3,335 to €4,595, a €1,260 spread on the same certified stone. Taylor and Hart lists it at €4,595. 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
Colour
SI1
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryVery Good
FluorescenceStrong
OriginNatural
Grading LabGIA
CertificateGIA 1565632687
Dimensions10.57 × 5.51 × 3.50 mm
L/W Ratio1.92
Girdle conditionFaceted
Culet sizeNone
Key to symbols
Crystal, Cloud, Feather, Needle, Extra Facet
Top View
10.57 mm5.51 mm1.20 ctD / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryVery Good
FluorescenceStrong
CertificateGIA 1565632687
Side View
Table 58.0%CrownGirdle: STK-THKPavilionCulet: NoneDepth 63.4%

Caratlytics Score

How it works →
A
Excellent
Excellent quality and great value
Unlock full score analysis
See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 6
Current: €4,505 EUR|Low: €3,335 EUR|High: €4,595 EUR|Avg: €4,075 EUR
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Taylor and Hart
November 6, 2026
Retailer 2€3,335 EUR
Retailer 4€3,833 EUR
Retailer 3€4,352 EUR
Retailer 1€4,505 EUR
Taylor and Hart€4,595 EUR

2 data points across 5 retailers

5 retailers€3,335 EUR to €4,595 EUR

A
Cheapest Retailer
-
€3,335 EUR
B+
Retailer 2
-
€3,833 EUR
View
B+
Retailer 3
-
€4,352 EUR
View
B
Retailer 4
-
€4,505 EUR
View
Most Expensive
B
Taylor and Hart
27DXD25 · Nov 6
€4,595 EUR
$5,130 USD
View
4 more retailers have this diamond
Prices start from €3,335 EURSave up to €1,260 EUR

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.

A
1.20ct Marquise
€3,335 EUR