Heart|Natural|GIA

1.28ct I SI1 Heart Natural Diamond

EX • I/SI1 • GIA 7556044238

Certificate GIA 7556044238

Diamond specifications and retailer prices

From €1,720 EUR
As of November 6, 2026
Save €2,228 EUR (56%) vs most expensive(unlock to see where)
18 retailers carry this diamond
Most expensive: €5,293 EUR at NZ Jewellers · As of September 25, 2026
View at NZ Jewellers

About this 1.28ct natural heart diamond

This 1.28ct 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 7556044238. Listed at 18 retailers as of November 6, 2026, with a 130% spread between the cheapest and most expensive listing. That is exactly the kind of price-discovery gap Carat Hunter was built to surface. 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

1.28
Carat
I
Colour
SI1
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 7556044238
Dimensions6.65 × 7.51 × 4.34 mm
L/W Ratio1.13
Girdle conditionFaceted
Top View
6.65 mm7.51 mm1.28 ctI / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 7556044238
Side View
Table 58.0%CrownGirdle: MED-THKPavilionCulet: NoneDepth 57.7%

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: Nov 6
Current: €3,948 EUR|Low: €1,720 EUR|High: €4,354 EUR|Avg: €2,579 EUR|-9.3%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
Retailer 13
Retailer 14
Retailer 15
November 7, 2026
Retailer 12€1,720 EUR
Retailer 4€1,990 EUR
Retailer 11€2,031 EUR
Retailer 14€2,091 EUR
Retailer 15€2,150 EUR
Retailer 5€2,154 EUR
Retailer 13€2,244 EUR
Retailer 6€2,356 EUR
Retailer 9€2,384 EUR
Retailer 8€2,391 EUR
Retailer 3€2,443 EUR
Retailer 10€2,766 EUR
Retailer 2€3,550 EUR
Retailer 7€3,574 EUR
Retailer 1€3,948 EUR

28 data points across 15 retailers

18 retailers€1,720 EUR to €3,948 EUR

A
Cheapest Retailer
-
€1,720 EUR
Retailer 2
-
€1,990 EUR
View
Price last confirmed 10 days ago
Retailer 3
-
€2,031 EUR
View
Price last confirmed 3 days ago
A
Retailer 4
-
€2,091 EUR
View
Final sale: no returns
A
Retailer 5
-
€2,150 EUR
View
Retailer 6
-
€2,154 EUR
View
Price last confirmed 10 days ago
A
Retailer 7
-
€2,244 EUR
View
Retailer 8
-
€2,356 EUR
View
Price last confirmed 8 days ago
A
Retailer 9
-
€2,384 EUR
View
A
Retailer 10
-
€2,391 EUR
View
Retailer 11
-
€2,443 EUR
View
Price last confirmed 8 days ago
B+
Retailer 12
-
€2,683 EUR
View
Retailer 13
-
€2,759 EUR
View
Price last confirmed 31 days ago
B+
Retailer 14
-
€2,766 EUR
View
B
Retailer 15
-
€3,550 EUR
View
B
Retailer 16
-
€3,574 EUR
View
B+
Retailer 17
-
€3,948 EUR
View
Most Expensive
NZ Jewellers
51cf11a4-94cb-49a5-b5c0-8df3dfc5fe88 · Sep 25
€5,293 EUR
$5,910 USD
View
Price last confirmed 42 days ago
17 more retailers have this diamond
Prices start from €1,720 EURSave up to €2,228 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
1.28ct Heart
€1,720 EUR