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Marquise|Natural|GIA

1.26ct I SI1 Marquise Natural Diamond

GD • I/SI1 • GIA 5231971694

Certificate GIA 5231971694

Diamond specifications and retailer prices

From €3,650 EUR
As of November 6, 2026
Save €4,008 EUR (52%) vs most expensive(unlock to see where)
8 retailers carry this diamond
Most expensive: €7,658 EUR at MOH London · As of November 7, 2026
View at MOH London

About this 1.26ct natural marquise diamond

This 1.26ct natural marquise sits in the one-and-a-quarter to one-and-a-half 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 5231971694. Listed at 8 retailers as of November 6, 2026, with prices from €3,650 to €7,658, a €4,008 spread on the same certified stone. MOH London lists it at €7,658. 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

1.26
Carat
I
Colour
SI1
Clarity
Good
Cut (retailer stated)

Specifications

Cut (retailer stated)Good
PolishVery Good
SymmetryGood
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 5231971694
Dimensions10.01 × 5.77 × 3.79 mm
L/W Ratio1.73
Culet sizeNone
Top View
10.01 mm5.77 mm1.26 ctI / SI1
OriginNatural
CutGood
PolishVery Good
SymmetryGood
FluorescenceNone
CertificateGIA 5231971694
Side View
Table 53.0%CrownGirdle: THN-VTKPavilionCulet: NoneDepth 65.8%

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 6
Current: €7,658 EUR|Low: €3,561 EUR|High: €7,792 EUR|Avg: €4,992 EUR|-1.6%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
November 7, 2026
Retailer 7€3,650 EUR
Retailer 5€3,918 EUR
Retailer 4€3,932 EUR
Retailer 2€4,670 EUR
Retailer 6€4,898 EUR
Retailer 8€5,335 EUR
Retailer 3€5,440 EUR
MOH London€7,658 EUR

43 data points across 8 retailers

8 retailers€3,650 EUR to €7,658 EUR

B+
Cheapest Retailer
-
€3,650 EUR
B+
Retailer 2
-
€3,918 EUR
View
Final sale: no returns
B
Retailer 3
-
€3,932 EUR
View
B
Retailer 4
-
€4,670 EUR
View
Retailer 5
-
€4,898 EUR
View
Price last confirmed 34 days ago
Retailer 6
-
€5,335 EUR
View
Price last confirmed 23 days ago
B
Retailer 7
-
€5,440 EUR
View
Most Expensive
C
MOH London
42EA1596D · Nov 7
€7,658 EUR
£6,732 GBP
View
7 more retailers have this diamond
Prices start from €3,650 EURSave up to €4,008 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+
1.26ct Marquise
€3,650 EUR