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Marquise|Natural|GIA

1.00ct E SI1 Marquise Natural Diamond

EX • E/SI1 • GIA 6551185021

Certificate GIA 6551185021

Diamond specifications and retailer prices

From €3,413 EUR
As of November 5, 2026
Save €4,197 EUR (55%) vs most expensive(unlock to see where)
21 retailers carry this diamond
Most expensive: €7,610 EUR at NZ Jewellers · As of November 5, 2026
View at NZ Jewellers

About this 1ct natural marquise diamond

This 1ct natural marquise sits in the classic one-carat band, graded E 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 6551185021. Listed at 21 retailers as of November 5, 2026, with prices from €3,413 to €7,610, a €4,197 spread on the same certified stone. NZ Jewellers lists it at €7,610. 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

1.00
Carat
E
Colour
SI1
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishVery Good
SymmetryVery Good
FluorescenceFaint
OriginNatural
Grading LabGIA
CertificateGIA 6551185021
Dimensions10.31 × 5.06 × 3.18 mm
L/W Ratio2.04
Girdle conditionFaceted
Culet sizeNone
Top View
10.31 mm5.06 mm1.00 ctE / SI1
OriginNatural
CutExcellent
PolishVery Good
SymmetryVery Good
FluorescenceFaint
CertificateGIA 6551185021
Side View
Table 56.0%CrownGirdle: VTK-ETKPavilionCulet: NoneDepth 62.8%

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 5
Current: €7,610 EUR|Low: €3,483 EUR|High: €7,610 EUR|Avg: €4,752 EUR
NZ Jewellers
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
Retailer 13
November 6, 2026
Retailer 9€3,483 EUR
Retailer 12€3,717 EUR
Retailer 4€3,736 EUR
Retailer 11€3,751 EUR
Retailer 3€3,958 EUR
Retailer 13€3,958 EUR
Retailer 2€4,275 EUR
Retailer 5€4,310 EUR
Retailer 10€4,403 EUR
Retailer 8€4,922 EUR
Retailer 6€5,330 EUR
Retailer 7€6,938 EUR
NZ Jewellers€7,610 EUR

46 data points across 13 retailers

21 retailers€3,413 EUR to €7,610 EUR

B+
Cheapest Retailer
-
€3,413 EUR
B+
Retailer 2
-
€3,483 EUR
View
B+
Retailer 3
-
€3,612 EUR
View
B+
Retailer 4
-
€3,717 EUR
View
B+
Retailer 5
-
€3,736 EUR
View
B+
Retailer 6
-
€3,751 EUR
View
Retailer 7
-
€3,958 EUR
View
Price last confirmed 8 days ago
B
Retailer 8
-
€3,958 EUR
View
B
Retailer 9
-
€3,958 EUR
View
B+
Retailer 10
-
€4,275 EUR
View
B
Retailer 11
-
€4,310 EUR
View
Retailer 12
-
€4,403 EUR
View
Price last confirmed 28 days ago
B
Retailer 13
-
€4,446 EUR
View
B
Retailer 14
-
€4,446 EUR
View
B
Retailer 15
-
€4,566 EUR
View
B
Retailer 16
-
€4,597 EUR
View
Retailer 17
-
€4,824 EUR
View
Price last confirmed 14 days ago
B
Retailer 18
-
€4,922 EUR
View
B
Retailer 19
-
€5,330 EUR
View
B
Retailer 20
-
€6,938 EUR
View
Most Expensive
B
NZ Jewellers
f3e8fe6d-4665-4962-b68a-9e5acc960959 · Nov 5
€7,610 EUR
$8,542 USD
View
20 more retailers have this diamond
Prices start from €3,413 EURSave up to €4,197 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+
1.00ct Marquise
€3,413 EUR