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Heart|Natural|GIA

1.28ct I SI1 Heart Natural Diamond

EX • I/SI1 • GIA 7556044238

Certificate GIA 7556044238

Diamond specifications and retailer prices

From €1,799 EUR
HK$15,700 HKD
As of October 31, 2026
Save €2,387 EUR (57%) vs most expensive(unlock to see where)
17 retailers carry this diamond
Most expensive: €5,290 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 17 retailers as of October 29, 2026, with a 133% 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
Color
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: Oct 31
Current: €2,921 EUR|Low: €1,799 EUR|High: €4,363 EUR|Avg: €2,577 EUR|-0.5%
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
October 31, 2026
Retailer 8€1,799 EUR
Retailer 3€1,987 EUR
Retailer 13€1,989 EUR
Retailer 11€1,992 EUR
Retailer 14€2,007 EUR
Retailer 10€2,123 EUR
Retailer 15€2,153 EUR
Retailer 4€2,354 EUR
Retailer 12€2,442 EUR
Retailer 9€2,540 EUR
Retailer 7€2,757 EUR
Retailer 1€2,921 EUR
Retailer 5€3,571 EUR
Retailer 2€3,710 EUR
Retailer 6€4,186 EUR

29 data points across 15 retailers

17 retailers€1,799 EUR to €4,186 EUR

A
Cheapest Retailer
-
€1,799 EUR
HK$15,700 HKD
A
Retailer 2
-
€1,987 EUR
$2,220 USD
View
Final sale: no returns
A
Retailer 3
-
€1,989 EUR
$2,222 USD
View
A
Retailer 4
-
€1,992 EUR
$2,225 USD
View
A
Retailer 5
-
€2,007 EUR
$2,242 USD
View
A
Retailer 6
-
€2,123 EUR
View
A
Retailer 7
-
€2,153 EUR
$2,405 USD
View
A
Retailer 8
-
€2,354 EUR
$2,630 USD
View
A
Retailer 9
-
€2,442 EUR
$2,728 USD
View
A
Retailer 10
-
€2,540 EUR
£2,234 GBP
View
B+
Retailer 11
-
€2,681 EUR
A$4,608 AUD
View
Retailer 12
-
€2,757 EUR
A$4,739 AUD
View
Price last confirmed 24 days ago
B+
Retailer 13
-
€2,921 EUR
ZAR 52,719 ZAR
View
B+
Retailer 14
-
€3,571 EUR
$3,990 USD
View
Retailer 15
-
€3,710 EUR
$4,145 USD
View
Price last confirmed 8 days ago
B
Retailer 16
-
€4,186 EUR
£3,682 GBP
View
Most Expensive
NZ Jewellers
51cf11a4-94cb-49a5-b5c0-8df3dfc5fe88 · Sep 25
€5,290 EUR
$5,910 USD
View
Price last confirmed 36 days ago
16 more retailers have this diamond
Prices start from €1,799 EURSave up to €2,387 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
€1,799 EUR