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Round|Natural|GIA

1.20ct J I1 Round Natural Diamond

EX • J/I1 • GIA 1409310034

Certificate GIA 1409310034

Diamond specifications and retailer prices

From €1,627 EUR
HK$14,200 HKD
As of November 1, 2026
Save €2,951 EUR (64%) vs most expensive(unlock to see where)
9 retailers carry this diamond
Most expensive: €4,578 EUR at NZ Jewellers · As of October 30, 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 J colour (near-colourless) and I1 clarity (included), with a top-tier cut grade and certified by GIA 1409310034. Listed at 9 retailers as of October 30, 2026, with prices from €1,627 to €4,578, a €2,951 spread on the same certified stone. NZ Jewellers lists it at €4,578. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.20
Carat
J
Color
I1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishVery Good
SymmetryVery Good
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 1409310034
Dimensions6.81 × 6.75 × 4.24 mm
L/W Ratio1.01
Key to symbols
Twinning Wisp, Feather, Crystal, Needle
Top View
6.81 mm6.75 mm1.20 ctJ / I1
OriginNatural
CutExcellent
PolishVery Good
SymmetryVery Good
FluorescenceNone
CertificateGIA 1409310034
Side View
Table 56.0%CrownGirdlePavilionCulet: NoneDepth 62.6%

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 1
Current: €4,578 EUR|Low: €1,615 EUR|High: €4,670 EUR|Avg: €2,420 EUR|-2.0%
NZ Jewellers
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
November 1, 2026
Retailer 4€1,627 EUR
Retailer 3€1,685 EUR
Retailer 10€1,978 EUR
Retailer 7€2,060 EUR
Retailer 5€2,189 EUR
Retailer 8€2,189 EUR
Retailer 6€2,291 EUR
Retailer 9€2,527 EUR
Retailer 11€2,707 EUR
Retailer 2€2,722 EUR
NZ Jewellers€4,578 EUR

17 data points across 11 retailers

9 retailers€1,627 EUR to €4,578 EUR

B+
Cheapest Retailer
-
€1,627 EUR
HK$14,200 HKD
B
Retailer 2
-
€1,978 EUR
$2,210 USD
View
B
Retailer 3
-
€2,060 EUR
$2,302 USD
View
B
Retailer 4
-
€2,189 EUR
$2,446 USD
View
B
Retailer 5
-
€2,189 EUR
$2,446 USD
View
B
Retailer 6
-
€2,291 EUR
$2,559 USD
View
B
Retailer 7
-
€2,527 EUR
$2,823 USD
View
B
Retailer 8
-
€2,722 EUR
View
Most Expensive
C
NZ Jewellers
e3631e30-be6a-42df-82c7-78a7c947bf25 · Oct 30
€4,578 EUR
$5,115 USD
View
8 more retailers have this diamond
Prices start from €1,627 EURSave up to €2,951 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
€1,627 EUR