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1.26ct D SI2 Round Natural Diamond

EX • D/SI2 • GIA 4

Certificate GIA 4

Diamond specifications and retailer prices

From €3,382 EUR
$3,778 USD
As of October 31, 2026
Save €855 EUR (20%) vs most expensive(unlock to see where)
3 retailers carry this diamond
Most expensive: €4,236 EUR at Blue Nile · As of October 31, 2026
View at Blue Nile

About this 1.26ct natural round diamond

This 1.26ct natural round sits in the one-and-a-quarter to one-and-a-half carat band, graded D colour (colourless) and SI2 clarity (slightly-included), with a top-tier cut grade and certified by GIA. Listed at 3 retailers as of October 31, 2026, with prices from €3,382 to €4,236, a €855 spread on the same certified stone. Blue Nile lists it at €4,236. 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

1.26
Carat
D
Color
SI2
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishVery Good
SymmetryExcellent
FluorescenceMedium
OriginNatural
Grading LabGIA
CertificateGIA 4
Dimensions6.89 × 6.93 × 4.29 mm
L/W Ratio1.01
Top View
6.89 mm6.93 mm1.26 ctD / SI2
OriginNatural
CutExcellent
PolishVery Good
SymmetryExcellent
FluorescenceMedium
CertificateGIA 4
Side View
Table 56.0%CrownGirdle: MED-STKPavilionCulet: NoneDepth 62.1%

Caratlytics Score

How it works →
A
Excellent
Excellent quality and great value
Unlock full score analysis
See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Oct 31
Current: €4,236 EUR|Low: €3,382 EUR|High: €4,236 EUR|Avg: €3,613 EUR
Blue Nile
Retailer 2
Retailer 3
September 26, 2026
Retailer 2€3,382 EUR
Retailer 3€3,534 EUR
Blue Nile€4,236 EUR

2 data points across 3 retailers

3 retailers€3,382 EUR to €4,236 EUR

A
Cheapest Retailer
-
€3,382 EUR
$3,778 USD
A
Retailer 2
-
€3,534 EUR
$3,948 USD
View
Most Expensive
B+
Blue Nile
22390073 · Oct 31
€4,236 EUR
$4,733 USD
View
2 more retailers have this diamond
Prices start from €3,382 EURSave up to €855 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.

A
1.26ct Round
€3,382 EUR