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Marquise|Natural|GIA

1.00ct K SI1 Marquise Natural Diamond

GD • K/SI1 • GIA 2556808009

Certificate GIA 2556808009

Diamond specifications and retailer prices

From €1,192 EUR
As of November 6, 2026
Save €1,062 EUR (47%) vs most expensive(unlock to see where)
7 retailers carry this diamond
Most expensive: €2,254 EUR at With Clarity · As of November 6, 2026
View at With Clarity

About this 1ct natural marquise diamond

This 1ct natural marquise sits in the classic one-carat band, graded K colour (faint-tinted) and SI1 clarity (slightly-included), with a standard cut grade stated by the retailer rather than the lab and certified by GIA 2556808009. Listed at 7 retailers as of November 6, 2026, with prices from €1,192 to €2,254, a €1,062 spread on the same certified stone. With Clarity lists it at €2,254. 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

1.00
Carat
K
Colour
SI1
Clarity
Good
Cut (retailer stated)

Specifications

Cut (retailer stated)Good
PolishExcellent
SymmetryVery Good
FluorescenceFaint
OriginNatural
Grading LabGIA
CertificateGIA 2556808009
Dimensions9.82 × 5.15 × 3.32 mm
L/W Ratio1.91
Girdle conditionFaceted
Culet sizeNone
Key to symbols
Feather, Twinning Wisp
Top View
9.82 mm5.15 mm1.00 ctK / SI1
OriginNatural
CutGood
PolishExcellent
SymmetryVery Good
FluorescenceFaint
CertificateGIA 2556808009
Side View
Table 59.0%CrownGirdle: Extremely ThickPavilionCulet: NoneDepth 64.5%

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: €1,618 EUR|Low: €1,192 EUR|High: €2,231 EUR|Avg: €1,601 EUR|-2.2%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
With Clarity
November 6, 2026
Retailer 4€1,192 EUR
Retailer 3€1,319 EUR
Retailer 6€1,464 EUR
Retailer 1€1,618 EUR
Retailer 5€1,630 EUR
Retailer 2€1,652 EUR
With Clarity€2,231 EUR

14 data points across 7 retailers

7 retailers€1,192 EUR to €2,254 EUR

B+
Cheapest Retailer
-
€1,192 EUR
B+
Retailer 2
-
€1,319 EUR
View
B+
Retailer 3
-
€1,464 EUR
View
B+
Retailer 4
-
€1,618 EUR
View
B+
Retailer 5
-
€1,630 EUR
View
B+
Retailer 6
-
€1,652 EUR
View
Most Expensive
B
With Clarity
2556808009 · Nov 6
€2,254 EUR
$2,517 USD
View
6 more retailers have this diamond
Prices start from €1,192 EURSave up to €1,062 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
€1,192 EUR