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Marquise|Natural|GIA

1.21ct I SI1 Marquise Natural Diamond

GD • I/SI1 • GIA 1558196256

Certificate GIA 1558196256

Diamond specifications and retailer prices

From €4,608 EUR
As of November 5, 2026
Save €1,163 EUR (20%) vs most expensive(unlock to see where)
3 retailers carry this diamond
Most expensive: €5,771 EUR at 77 Diamonds · As of November 7, 2026
View at 77 Diamonds

About this 1.21ct natural marquise diamond

This 1.21ct natural marquise sits in the classic one-carat band, graded I colour (near-colourless) and SI1 clarity (slightly-included), with a standard cut grade stated by the retailer rather than the lab and certified by GIA 1558196256. Listed at 3 retailers as of November 5, 2026, with prices from €4,608 to €5,771, a €1,163 spread on the same certified stone. 77 Diamonds lists it at €5,771. 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

1.21
Carat
I
Colour
SI1
Clarity
Good
Cut (retailer stated)

Specifications

Cut (retailer stated)Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle41.51°
Pavilion angle41.34°
OriginNatural
Grading LabGIA
CertificateGIA 1558196256
Dimensions9.88 × 5.41 × 3.63 mm
L/W Ratio1.83
Culet sizeNone
Top View
9.88 mm5.41 mm1.21 ctI / SI1
OriginNatural
CutGood
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 1558196256
Side View
Table 64.0%Crown 41.51°Girdle: STK-VTKPavilion 41.34°Culet: NoneDepth 67.0%

Caratlytics Score

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B
Good
Decent quality, room for better deals
Unlock full score analysis
See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 5
Current: €5,771 EUR|Low: €2,474 EUR|High: €5,970 EUR|Avg: €4,293 EUR|+1.1%
77 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
November 7, 2026
Retailer 3€2,474 EUR
Retailer 10€3,372 EUR
Retailer 7€3,518 EUR
Retailer 12€3,626 EUR
Retailer 5€3,965 EUR
Retailer 8€4,196 EUR
Retailer 13€4,201 EUR
Retailer 11€4,235 EUR
Retailer 6€4,608 EUR
Retailer 2€5,358 EUR
Retailer 9€5,490 EUR
77 Diamonds€5,771 EUR
Retailer 4€5,970 EUR

36 data points across 13 retailers

3 retailers€4,608 EUR to €5,771 EUR

B
Cheapest Retailer
-
€4,608 EUR
C
Retailer 2
-
€5,358 EUR
View
Most Expensive
C
77 Diamonds
MQMBY8VBCHFH · Nov 7
€5,771 EUR
£5,073 GBP
View
2 more retailers have this diamond
Prices start from €4,608 EURSave up to €1,163 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
1.21ct Marquise
€4,608 EUR