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Heart|Natural|GIA

1.26ct I SI1 Heart Natural Diamond

GD • I/SI1 • GIA 5453335159

Certificate GIA 5453335159

Diamond specifications and retailer prices

From €2,828 EUR
As of November 5, 2026
Save €1,117 EUR (28%) vs most expensive(unlock to see where)
3 retailers carry this diamond
Most expensive: €3,945 EUR at 77 Diamonds · As of November 7, 2026
View at 77 Diamonds

About this 1.26ct natural heart diamond

This 1.26ct natural heart 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 5453335159. Listed at 3 retailers as of November 5, 2026, with prices from €2,828 to €3,945, a €1,117 spread on the same certified stone. 77 Diamonds lists it at €3,945. 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
PolishExcellent
SymmetryVery Good
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 5453335159
Dimensions6.23 × 6.03 × 4.09 mm
L/W Ratio1.03
Top View
6.23 mm6.03 mm1.26 ctI / SI1
OriginNatural
CutGood
PolishExcellent
SymmetryVery Good
FluorescenceNone
CertificateGIA 5453335159
Side View
Table 61.0%CrownGirdle: ThinPavilionCulet: NoneDepth 67.7%

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: €3,945 EUR|Low: €2,516 EUR|High: €3,989 EUR|Avg: €3,050 EUR|+0.1%
77 Diamonds
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
November 7, 2026
Retailer 6€2,516 EUR
Retailer 5€2,673 EUR
Retailer 4€2,727 EUR
Retailer 7€2,820 EUR
Retailer 3€3,023 EUR
Retailer 8€3,276 EUR
Retailer 2€3,404 EUR
77 Diamonds€3,945 EUR

36 data points across 8 retailers

3 retailers€2,828 EUR to €3,945 EUR

B+
Cheapest Retailer
-
€2,828 EUR
B
Retailer 2
-
€2,964 EUR
View
Most Expensive
B
77 Diamonds
CUSZ4FSBHBXA · Nov 7
€3,945 EUR
£3,468 GBP
View
2 more retailers have this diamond
Prices start from €2,828 EURSave up to €1,117 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 Heart
€2,828 EUR