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Marquise|Natural|GIA

1.20ct I SI1 Marquise Natural Diamond

EX • I/SI1 • GIA 1565306355

Certificate GIA 1565306355

Diamond specifications and retailer prices

From €3,158 EUR
As of November 6, 2026
Save €4,224 EUR (57%) vs most expensive(unlock to see where)
20 retailers carry this diamond
Most expensive: €7,382 EUR 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 I 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 1565306355. Listed at 20 retailers as of November 5, 2026, with prices from €3,158 to €7,382, a €4,224 spread on the same certified stone. NZ Jewellers lists it at €7,382. 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
I
Colour
SI1
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryVery Good
FluorescenceMedium
OriginNatural
Grading LabGIA
CertificateGIA 1565306355
Dimensions11.23 × 5.42 × 3.04 mm
L/W Ratio2.07
Girdle conditionFaceted
Culet sizeNone
Key to symbols
Crystal, Feather
Top View
11.23 mm5.42 mm1.20 ctI / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryVery Good
FluorescenceMedium
CertificateGIA 1565306355
Side View
Table 60.0%CrownGirdle: STK-VTKPavilionCulet: NoneDepth 56.0%

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: €6,712 EUR|Low: €3,158 EUR|High: €6,820 EUR|Avg: €4,441 EUR|-1.6%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
November 7, 2026
Retailer 5€3,158 EUR
Retailer 2€3,999 EUR
Retailer 6€4,110 EUR
Retailer 4€4,172 EUR
Retailer 9€4,249 EUR
Retailer 3€4,271 EUR
Retailer 11€4,281 EUR
Retailer 10€4,462 EUR
Retailer 7€4,499 EUR
Retailer 8€5,170 EUR
Retailer 1€6,712 EUR

30 data points across 11 retailers

20 retailers€3,158 EUR to €7,382 EUR

B+
Cheapest Retailer
-
€3,158 EUR
B+
Retailer 2
-
€3,372 EUR
View
Final sale: no returns
B
Retailer 3
-
€3,695 EUR
View
B+
Retailer 4
-
€3,873 EUR
View
B
Retailer 5
-
€3,999 EUR
View
B+
Retailer 6
-
€4,110 EUR
View
B+
Retailer 7
-
€4,172 EUR
View
Retailer 8
-
€4,237 EUR
View
Price last confirmed 9 days ago
B
Retailer 9
-
€4,237 EUR
View
B
Retailer 10
-
€4,237 EUR
View
B
Retailer 11
-
€4,249 EUR
View
Retailer 12
-
€4,271 EUR
View
Price last confirmed 29 days ago
B
Retailer 13
-
€4,281 EUR
View
B
Retailer 14
-
€4,409 EUR
View
B
Retailer 15
-
€4,462 EUR
View
B
Retailer 16
-
€4,499 EUR
View
B
Retailer 17
-
€4,889 EUR
View
B
Retailer 18
-
€5,170 EUR
View
B
Retailer 19
-
€6,712 EUR
View
Most Expensive
B
NZ Jewellers
a8ee4bc2-c613-4e2c-a18c-d585237df2a4 · Nov 5
€7,382 EUR
$8,242 USD
View
19 more retailers have this diamond
Prices start from €3,158 EURSave up to €4,224 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
€3,158 EUR