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Round|Natural|GIA

1.20ct J SI1 Round Natural Diamond

EX • J/SI1 • GIA 1553140319

Certificate GIA 1553140319

Diamond specifications and retailer prices

From €1,651 EUR
As of November 6, 2026
Save €2,150 EUR (57%) vs most expensive(unlock to see where)
20 retailers carry this diamond
Most expensive: €4,594 EUR at NZ Jewellers · As of October 3, 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 SI1 clarity (slightly-included), with a top-tier cut grade and certified by GIA 1553140319. Listed at 20 retailers as of November 4, 2026, with a 130% 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
Colour
SI1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle33°
Pavilion angle41°
OriginNatural
Grading LabGIA
CertificateGIA 1553140319
Dimensions6.81 × 6.87 × 4.12 mm
L/W Ratio1.01
Girdle conditionFaceted
Culet sizeNone
Key to symbols
Feather, Crystal, Cloud, Cavity, Needle
Top View
6.81 mm6.87 mm1.20 ctJ / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 1553140319
Side View
Table 62.0%Crown 33°Girdle: Slightly ThickPavilion 41°Culet: NoneDepth 60.2%

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: Nov 6
Current: €2,280 EUR|Low: €1,651 EUR|High: €3,895 EUR|Avg: €2,420 EUR|-1.4%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
Retailer 13
November 7, 2026
Retailer 12€1,651 EUR
Retailer 6€1,718 EUR
Retailer 10€1,925 EUR
Retailer 2€2,006 EUR
Retailer 13€2,048 EUR
Retailer 4€2,239 EUR
Retailer 1€2,280 EUR
Retailer 7€2,296 EUR
Retailer 3€2,300 EUR
Retailer 9€2,654 EUR
Retailer 8€2,700 EUR
Retailer 5€2,705 EUR
Retailer 11€3,800 EUR

33 data points across 13 retailers

20 retailers€1,651 EUR to €3,800 EUR

A
Cheapest Retailer
-
€1,651 EUR
A
Retailer 2
-
€1,718 EUR
View
A
Retailer 3
-
€1,925 EUR
View
B+
Retailer 4
-
€2,006 EUR
View
Final sale: no returns
B+
Retailer 5
-
€2,048 EUR
View
B+
Retailer 6
-
€2,061 EUR
View
B+
Retailer 7
-
€2,064 EUR
View
Retailer 8
-
€2,197 EUR
View
Price last confirmed 40 days ago
B+
Retailer 9
-
€2,239 EUR
View
B+
Retailer 10
-
€2,280 EUR
View
B+
Retailer 11
-
€2,296 EUR
View
Retailer 12
-
€2,298 EUR
View
Price last confirmed 39 days ago
B+
Retailer 13
-
€2,300 EUR
View
Retailer 14
-
€2,536 EUR
View
Price last confirmed 39 days ago
B+
Retailer 15
-
€2,654 EUR
View
B+
Retailer 16
-
€2,700 EUR
View
Retailer 17
-
€2,705 EUR
View
Price last confirmed 31 days ago
B
Retailer 18
-
€3,800 EUR
View
Retailer 19
-
€4,594 EUR
View
Price last confirmed 40 days ago
Most Expensive
NZ Jewellers
8682ebd1-3440-4309-9dfb-944ef4ce9066 · Oct 3
€4,594 EUR
$5,129 USD
View
Price last confirmed 34 days ago
19 more retailers have this diamond
Prices start from €1,651 EURSave up to €2,150 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 Round
€1,651 EUR