Heart|Natural|GIA

1.20ct K SI1 Heart Natural Diamond

EX • K/SI1 • GIA 6233852681

Certificate GIA 6233852681

Diamond specifications and retailer prices

From €1,043 EUR
As of November 6, 2026
Save €1,506 EUR (59%) vs most expensive(unlock to see where)
9 retailers carry this diamond
Most expensive: €3,292 EUR at NZ Jewellers · As of September 29, 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 K colour (faint-tinted) and SI1 clarity (slightly-included), with a top-tier cut grade stated by the retailer rather than the lab and certified by GIA 6233852681. Listed at 9 retailers as of November 4, 2026, with a 144% 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
K
Colour
SI1
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Pavilion angle38.03°
OriginNatural
Grading LabGIA
CertificateGIA 6233852681
Dimensions6.29 × 7.39 × 4.29 mm
L/W Ratio1.17
Top View
6.29 mm7.39 mm1.20 ctK / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 6233852681
Side View
Table 62.0%CrownGirdle: STK-VTKPavilion 38.03°Culet: NoneDepth 58.0%

Caratlytics Score

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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: Nov 6
Current: €1,442 EUR|Low: €997 EUR|High: €2,693 EUR|Avg: €1,788 EUR|+2.5%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
November 6, 2026
Retailer 2€1,043 EUR
Retailer 5€1,364 EUR
Retailer 1€1,442 EUR
Retailer 6€1,489 EUR
Retailer 8€1,910 EUR
Retailer 7€2,119 EUR
Retailer 4€2,522 EUR
Retailer 3€2,548 EUR

26 data points across 8 retailers

9 retailers€1,043 EUR to €2,548 EUR

A
Cheapest Retailer
-
€1,043 EUR
A
Retailer 2
-
€1,364 EUR
View
Retailer 3
-
€1,412 EUR
View
Price last confirmed 36 days ago
A
Retailer 4
-
€1,442 EUR
View
A
Retailer 5
-
€1,489 EUR
View
Retailer 6
-
€1,523 EUR
View
Price last confirmed 36 days ago
B+
Retailer 7
-
€2,522 EUR
View
B
Retailer 8
-
€2,548 EUR
View
Most Expensive
NZ Jewellers
09b9ea23-6187-426f-9559-f62db5f6cb1f · Sep 29
€3,292 EUR
$3,676 USD
View
Price last confirmed 37 days ago
8 more retailers have this diamond
Prices start from €1,043 EURSave up to €1,506 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
€1,043 EUR