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Round|Natural|GIA

1.20ct I SI1 Round Natural Diamond

EX • I/SI1 • GIA 2504814178

Certificate GIA 2504814178

Diamond specifications and retailer prices

From €2,743 EUR
As of November 6, 2026
Save €3,444 EUR (56%) vs most expensive(unlock to see where)
22 retailers carry this diamond
Most expensive: €6,186 EUR at NZ Jewellers · As of November 5, 2026
View at NZ Jewellers

About this 1.2ct natural round diamond

This 1.2ct natural round sits in the classic one-carat band, graded I colour (near-colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by GIA 2504814178. Listed at 22 retailers as of November 5, 2026, with prices from €2,743 to €6,186, a €3,444 spread on the same certified stone. NZ Jewellers lists it at €6,186. 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
I
Colour
SI1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle32°
Pavilion angle41.6°
OriginNatural
Grading LabGIA
CertificateGIA 2504814178
Dimensions6.87 × 6.85 × 4.18 mm
L/W Ratio1.00
Star length55%
Lower girdle75%
Top View
6.87 mm6.85 mm1.20 ctI / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 2504814178
Side View
Table 60.0%Crown 32°Girdle: MED-STKPavilion 41.6°Culet: NoneDepth 61.0%

Caratlytics Score

How it works →
B+
Very Good
Strong quality and value balance
Unlock full score analysis
See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 6
Current: €2,940 EUR|Low: €2,566 EUR|High: €6,009 EUR|Avg: €3,762 EUR|+8.1%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
November 6, 2026
Retailer 2€2,743 EUR
Retailer 1€2,940 EUR
Retailer 9€3,021 EUR
Retailer 3€3,309 EUR
Retailer 4€3,574 EUR
Retailer 6€3,676 EUR
Retailer 10€3,803 EUR
Retailer 7€3,884 EUR
Retailer 5€4,333 EUR
Retailer 8€5,937 EUR

44 data points across 10 retailers

22 retailers€2,743 EUR to €6,186 EUR

B+
Cheapest Retailer
-
€2,743 EUR
B+
Retailer 2
-
€2,775 EUR
View
B+
Retailer 3
-
€2,856 EUR
View
B+
Retailer 4
-
€2,940 EUR
View
Final sale: no returns
B+
Retailer 5
-
€2,953 EUR
View
B+
Retailer 6
-
€3,021 EUR
View
B+
Retailer 7
-
€3,090 EUR
View
B+
Retailer 8
-
€3,216 EUR
View
Retailer 9
-
€3,216 EUR
View
Price last confirmed 8 days ago
B+
Retailer 10
-
€3,220 EUR
View
B+
Retailer 11
-
€3,309 EUR
View
B+
Retailer 12
-
€3,574 EUR
View
B+
Retailer 13
-
€3,592 EUR
View
B+
Retailer 14
-
€3,592 EUR
View
B+
Retailer 15
-
€3,676 EUR
View
B
Retailer 16
-
€3,708 EUR
View
Retailer 17
-
€3,803 EUR
View
Price last confirmed 29 days ago
B+
Retailer 18
-
€3,884 EUR
View
Retailer 19
-
€4,020 EUR
View
Price last confirmed 14 days ago
B
Retailer 20
-
€4,333 EUR
View
B
Retailer 21
-
€5,937 EUR
View
Most Expensive
B
NZ Jewellers
08346862-4419-48e2-ab77-6760ed94a92f · Nov 5
€6,186 EUR
$6,907 USD
View
21 more retailers have this diamond
Prices start from €2,743 EURSave up to €3,444 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 Round
€2,743 EUR