Heart|Natural|GIA

1.20ct G SI1 Heart Natural Diamond

EX • G/SI1 • GIA 3415985694

Certificate GIA 3415985694

Diamond specifications and retailer prices

From €3,959 EUR
As of November 4, 2026
Save €2,153 EUR (35%) vs most expensive(unlock to see where)
19 retailers carry this diamond
Most expensive: €7,957 EUR at MOH London · As of November 4, 2026
View at MOH London

About this 1.2ct natural heart diamond

This 1.2ct natural heart sits in the classic one-carat band, graded G 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 3415985694. Listed at 19 retailers as of November 4, 2026, with a 54% 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
G
Colour
SI1
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryExcellent
FluorescenceFaint
OriginNatural
Grading LabGIA
CertificateGIA 3415985694
Dimensions5.88 × 5.67 × 4.12 mm
L/W Ratio1.04
Top View
5.88 mm5.67 mm1.20 ctG / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceFaint
CertificateGIA 3415985694
Side View
Table 58.0%CrownGirdle: THK-VTKPavilionCulet: NoneDepth 72.7%

Caratlytics Score

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B
Good
Decent quality, room for better deals
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Price History

Last verified: Nov 4
Current: €7,957 EUR|Low: €3,990 EUR|High: €8,075 EUR|Avg: €5,376 EUR|-1.2%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
November 7, 2026
Retailer 8€3,990 EUR
Retailer 11€4,081 EUR
Retailer 12€4,188 EUR
Retailer 4€4,262 EUR
Retailer 10€4,538 EUR
Retailer 2€4,825 EUR
Retailer 5€4,860 EUR
Retailer 3€5,017 EUR
Retailer 6€5,637 EUR
Retailer 7€6,112 EUR
Retailer 9€7,217 EUR
MOH London€7,957 EUR

36 data points across 12 retailers

19 retailers€3,959 EUR to €6,112 EUR

B
Cheapest Retailer
-
€3,959 EUR
B
Retailer 2
-
€3,990 EUR
View
B
Retailer 3
-
€4,081 EUR
View
B
Retailer 4
-
€4,188 EUR
View
Final sale: no returns
B
Retailer 5
-
€4,262 EUR
View
B
Retailer 6
-
€4,268 EUR
View
B
Retailer 7
-
€4,494 EUR
View
Retailer 8
-
€4,538 EUR
View
Price last confirmed 9 days ago
B
Retailer 9
-
€4,825 EUR
View
B
Retailer 10
-
€4,860 EUR
View
B
Retailer 11
-
€4,890 EUR
View
B
Retailer 12
-
€4,890 EUR
View
Retailer 13
-
€5,017 EUR
View
Price last confirmed 29 days ago
B
Retailer 14
-
€5,052 EUR
View
Retailer 15
-
€5,527 EUR
View
Price last confirmed 23 days ago
B
Retailer 16
-
€5,637 EUR
View
B
Retailer 17
-
€6,112 EUR
View
Retailer 18
-
€7,217 EUR
View
Price last confirmed 10 days ago
Most Expensive
MOH London
8BE0C30AB · Nov 4
€7,957 EUR
£6,995 GBP
View
Price under review
18 more retailers have this diamond
Prices start from €3,959 EURSave up to €2,153 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.

B
1.20ct Heart
€3,959 EUR