Marquise|Natural|GIA

1.20ct I SI1 Marquise Natural Diamond

VG • I/SI1 • GIA 1563074038

Certificate GIA 1563074038

Diamond specifications and retailer prices

From €3,286 EUR
As of November 4, 2026
Save €2,603 EUR (44%) vs most expensive(unlock to see where)
14 retailers carry this diamond
Most expensive: €5,889 EUR at Helzberg Diamonds · As of November 6, 2026
View at Helzberg Diamonds

About this 1.2ct natural marquise diamond

This 1.2ct natural marquise sits in the classic one-carat band, graded I colour (near-colourless) and SI1 clarity (slightly-included), with a very-good cut grade stated by the retailer rather than the lab and certified by GIA 1563074038. Listed at 14 retailers as of November 4, 2026, with prices from €3,286 to €5,889, a €2,603 spread on the same certified stone. Helzberg Diamonds lists it at €5,889. Cut grade matters more than carat or clarity for visible brilliance. If you can shift budget toward an Excellent or Ideal cut, do it before chasing higher colour or clarity.

The 4Cs

1.20
Carat
I
Colour
SI1
Clarity
Very Good
Cut (retailer stated)

Specifications

Cut (retailer stated)Very Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle39.82°
Pavilion angle41°
OriginNatural
Grading LabGIA
CertificateGIA 1563074038
Dimensions10.56 × 5.39 × 3.53 mm
L/W Ratio1.96
Culet sizeNone
Top View
10.56 mm5.39 mm1.20 ctI / SI1
OriginNatural
CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 1563074038
Side View
Table 58.0%Crown 39.82°Girdle: STK-VTKPavilion 41°Culet: NoneDepth 65.6%

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 4
Current: €5,889 EUR|Low: €3,286 EUR|High: €6,258 EUR|Avg: €4,301 EUR|-5.9%
Helzberg Diamonds
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 7, 2026
Retailer 11€3,286 EUR
Retailer 13€3,338 EUR
Retailer 10€3,435 EUR
Retailer 6€3,442 EUR
Retailer 9€3,512 EUR
Retailer 5€3,586 EUR
Retailer 2€3,791 EUR
Retailer 3€4,163 EUR
Retailer 4€4,194 EUR
Retailer 8€4,224 EUR
Retailer 7€4,559 EUR
Retailer 12€5,542 EUR
Retailer 14€5,850 EUR
Helzberg Diamonds€5,889 EUR

26 data points across 14 retailers

14 retailers€3,286 EUR to €5,889 EUR

B+
Cheapest Retailer
-
€3,286 EUR
B+
Retailer 2
-
€3,338 EUR
View
B+
Retailer 3
-
€3,435 EUR
View
B+
Retailer 4
-
€3,442 EUR
View
B+
Retailer 5
-
€3,512 EUR
View
B+
Retailer 6
-
€3,586 EUR
View
B
Retailer 7
-
€3,791 EUR
View
B
Retailer 8
-
€4,163 EUR
View
B
Retailer 9
-
€4,194 EUR
View
B
Retailer 10
-
€4,224 EUR
View
B
Retailer 11
-
€4,559 EUR
View
B
Retailer 12
-
€5,542 EUR
View
B
Retailer 13
-
€5,850 EUR
View
Most Expensive
B
Helzberg Diamonds
XZRHLMJGNKGJO · Nov 6
€5,889 EUR
$6,575 USD
View
13 more retailers have this diamond
Prices start from €3,286 EURSave up to €2,603 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.

B+
1.20ct Marquise
€3,286 EUR