Heart|Natural|GIA

1.20ct J SI1 Heart Natural Diamond

EX • J/SI1 • GIA 6541235789

Certificate GIA 6541235789

Diamond specifications and retailer prices

From €1,164 EUR
HK$10,200 HKD
As of October 25, 2026
Save €550 EUR (32%) vs most expensive(unlock to see where)
14 retailers carry this diamond
Most expensive: €3,822 EUR at NZ Jewellers · As of October 24, 2026
View at NZ Jewellers

About this 1.2ct natural heart diamond

This 1.2ct natural heart sits in the classic one-carat band, graded J 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 6541235789. Listed at 14 retailers as of October 25, 2026, with a 47% 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

1.20
Carat
J
Color
SI1
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryVery Good
FluorescenceMedium
OriginNatural
Grading LabGIA
CertificateGIA 6541235789
Dimensions6.77 × 7.26 × 4.24 mm
L/W Ratio1.07
Top View
6.77 mm7.26 mm1.20 ctJ / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryVery Good
FluorescenceMedium
CertificateGIA 6541235789
Side View
Table 57.0%CrownGirdle: THN-XTKPavilionCulet: NoneDepth 58.4%

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 25
Current: €3,822 EUR|Low: €1,164 EUR|High: €3,959 EUR|Avg: €1,842 EUR|-3.4%
NZ Jewellers
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
October 24, 2026
Retailer 9€1,164 EUR
Retailer 2€1,191 EUR
Retailer 14€1,447 EUR
Retailer 7€1,530 EUR
Retailer 10€1,567 EUR
Retailer 3€1,591 EUR
Retailer 13€1,623 EUR
Retailer 12€1,632 EUR
Retailer 8€1,640 EUR
Retailer 11€1,723 EUR
Retailer 4€1,808 EUR
Retailer 6€2,166 EUR
Retailer 5€2,793 EUR
NZ Jewellers€3,822 EUR

26 data points across 14 retailers

14 retailers€1,164 EUR to €1,714 EUR

A
Cheapest Retailer
-
€1,164 EUR
HK$10,200 HKD
Retailer 2
-
€1,191 EUR
₹127,181 INR
View
Price last confirmed 9 days ago
Retailer 3
-
€1,530 EUR
£1,351 GBP
View
Price last confirmed 9 days ago
Retailer 4
-
€1,567 EUR
$1,758 USD
View
Price last confirmed 11 days ago
Retailer 5
-
€1,591 EUR
$1,784 USD
View
Price last confirmed 9 days ago
Retailer 6
-
€1,623 EUR
$1,820 USD
View
Price last confirmed 10 days ago
Retailer 7
-
€1,632 EUR
SGD 2,473 SGD
View
Price last confirmed 10 days ago
Retailer 8
-
€1,640 EUR
$1,839 USD
View
Price last confirmed 11 days ago
B+
Retailer 9
-
€1,714 EUR
A$2,958 AUD
View
Retailer 10
-
€1,723 EUR
$1,932 USD
View
Price last confirmed 9 days ago
Retailer 11
-
€1,808 EUR
$2,028 USD
View
Price last confirmed 10 days ago
Retailer 12
-
€2,166 EUR
A$3,738 AUD
View
Price last confirmed 28 days ago
Retailer 13
-
€2,793 EUR
£2,467 GBP
View
Price last confirmed 15 days ago
Most Expensive
NZ Jewellers
f1a2d860-d537-431d-b040-66519a43dec2 · Oct 24
€3,822 EUR
$4,287 USD
View
Price last confirmed 9 days ago
13 more retailers have this diamond
Prices start from €1,164 EURSave up to €550 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
1.20ct Heart
€1,164 EUR