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Heart|Natural|GIA

1.33ct I SI1 Heart Natural Diamond

EX • I/SI1 • GIA 3545115877

Certificate GIA 3545115877

Diamond specifications and retailer prices

From €1,790 EUR
$2,000 USD
As of October 31, 2026
Save €354 EUR (17%) vs most expensive(unlock to see where)
5 retailers carry this diamond
Most expensive: €2,145 EUR at Blue Nile · As of October 31, 2026
View at Blue Nile

About this 1.33ct natural heart diamond

This 1.33ct 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 top-tier cut grade stated by the retailer rather than the lab and certified by GIA 3545115877. Listed at 5 retailers as of October 31, 2026, with prices from €1,790 to €2,145, a €354 spread on the same certified stone. Blue Nile lists it at €2,145. 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

1.33
Carat
I
Color
SI1
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 3545115877
Dimensions6.97 × 7.64 × 4.53 mm
L/W Ratio1.10
Top View
6.97 mm7.64 mm1.33 ctI / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 3545115877
Side View
Table 58.0%CrownGirdle: STK-VTKPavilionCulet: NoneDepth 59.3%

Caratlytics Score

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

Price History

Last verified: Oct 31
Current: €2,145 EUR|Low: €1,762 EUR|High: €2,667 EUR|Avg: €2,195 EUR|-19.6%
Blue Nile
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
November 2, 2026
Retailer 4€1,790 EUR
Retailer 3€1,800 EUR
Retailer 2€1,967 EUR
Retailer 5€2,053 EUR
Blue Nile€2,145 EUR
Retailer 6€2,612 EUR

40 data points across 6 retailers

5 retailers€1,790 EUR to €2,145 EUR

A
Cheapest Retailer
-
€1,790 EUR
$2,000 USD
A
Retailer 2
-
€1,800 EUR
$2,011 USD
View
Final sale: no returns
A
Retailer 3
-
€1,967 EUR
£1,731 GBP
View
A
Retailer 4
-
€2,053 EUR
SGD 3,100 SGD
View
Most Expensive
A
Blue Nile
27492901 · Oct 31
€2,145 EUR
$2,396 USD
View
4 more retailers have this diamond
Prices start from €1,790 EURSave up to €354 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
1.33ct Heart
€1,790 EUR