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Round|Natural|GIA

1.20ct J SI1 Round Natural Diamond

EX • J/SI1 • GIA 5563366918

Certificate GIA 5563366918

Diamond specifications and retailer prices

From €2,147 EUR
$2,399 USD
As of October 31, 2026
Save €3,201 EUR (60%) vs most expensive(unlock to see where)
20 retailers carry this diamond
Most expensive: €5,348 EUR at NZ Jewellers · As of October 27, 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 5563366918. Listed at 20 retailers as of October 27, 2026, with prices from €2,147 to €5,348, a €3,201 spread on the same certified stone. NZ Jewellers lists it at €5,348. 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
Color
SI1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle35.5°
Pavilion angle41.2°
OriginNatural
Grading LabGIA
CertificateGIA 5563366918
Dimensions6.76 × 6.71 × 4.24 mm
L/W Ratio1.01
Culet sizeNone
Key to symbols
Crystal, Cloud, Feather, Needle
Top View
6.76 mm6.71 mm1.20 ctJ / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 5563366918
Side View
Table 58.0%Crown 35.5°Girdle: Med. - Sli. ThickPavilion 41.2°Culet: NDepth 62.9%

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: Oct 31
Current: €5,348 EUR|Low: €2,147 EUR|High: €5,393 EUR|Avg: €2,834 EUR|-0.8%
NZ Jewellers
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
Retailer 13
Retailer 14
Retailer 15
Retailer 16
Retailer 17
Retailer 18
Retailer 19
November 1, 2026
Retailer 11€2,147 EUR
Retailer 18€2,291 EUR
Retailer 19€2,327 EUR
Retailer 7€2,361 EUR
Retailer 5€2,421 EUR
Retailer 2€2,428 EUR
Retailer 8€2,506 EUR
Retailer 13€2,558 EUR
Retailer 15€2,558 EUR
Retailer 9€2,605 EUR
Retailer 16€2,657 EUR
Retailer 6€2,685 EUR
Retailer 12€2,719 EUR
Retailer 14€2,756 EUR
Retailer 3€2,952 EUR
Retailer 17€2,991 EUR
Retailer 4€3,115 EUR
Retailer 10€4,506 EUR
NZ Jewellers€5,348 EUR

20 data points across 19 retailers

20 retailers€2,147 EUR to €5,348 EUR

B+
Cheapest Retailer
-
€2,147 EUR
$2,399 USD
B+
Retailer 2
-
€2,291 EUR
$2,560 USD
View
B+
Retailer 3
-
€2,327 EUR
$2,600 USD
View
B+
Retailer 4
-
€2,361 EUR
$2,638 USD
View
Final sale: no returns
B+
Retailer 5
-
€2,421 EUR
$2,705 USD
View
B+
Retailer 6
-
€2,428 EUR
£2,136 GBP
View
B+
Retailer 7
-
€2,506 EUR
$2,800 USD
View
B+
Retailer 8
-
€2,558 EUR
$2,858 USD
View
B+
Retailer 9
-
€2,558 EUR
$2,858 USD
View
B
Retailer 10
-
€2,605 EUR
$2,910 USD
View
B+
Retailer 11
-
€2,657 EUR
$2,968 USD
View
B+
Retailer 12
-
€2,685 EUR
$3,000 USD
View
B+
Retailer 13
-
€2,719 EUR
£2,392 GBP
View
B
Retailer 14
-
€2,756 EUR
$3,079 USD
View
Retailer 15
-
€2,913 EUR
A$5,007 AUD
View
Price last confirmed 24 days ago
B
Retailer 16
-
€2,952 EUR
$3,298 USD
View
B
Retailer 17
-
€2,991 EUR
View
B
Retailer 18
-
€3,115 EUR
ZAR 56,224 ZAR
View
B
Retailer 19
-
€4,506 EUR
£3,964 GBP
View
Most Expensive
C
NZ Jewellers
b2f06508-a94f-49b8-95ab-fca17bc7698d · Oct 27
€5,348 EUR
$5,975 USD
View
19 more retailers have this diamond
Prices start from €2,147 EURSave up to €3,201 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
€2,147 EUR