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Round|Natural|GIA

1.23ct I I1 Round Natural Diamond

EX • I/I1 • GIA 6525679970

Certificate GIA 6525679970

Diamond specifications and retailer prices

From €1,764 EUR
HK$15,400 HKD
As of October 31, 2026
Save €3,196 EUR (64%) vs most expensive(unlock to see where)
8 retailers carry this diamond
Most expensive: €4,961 EUR at NZ Jewellers · As of October 30, 2026
View at NZ Jewellers

About this 1.23ct natural round diamond

This 1.23ct natural round sits in the classic one-carat band, graded I colour (near-colourless) and I1 clarity (included), with a top-tier cut grade and certified by GIA 6525679970. Listed at 8 retailers as of October 30, 2026, with prices from €1,764 to €4,961, a €3,196 spread on the same certified stone. NZ Jewellers lists it at €4,961. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.23
Carat
I
Color
I1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle35°
Pavilion angle40.8°
OriginNatural
Grading LabGIA
CertificateGIA 6525679970
Dimensions6.83 × 6.86 × 4.23 mm
L/W Ratio1.00
Star length50%
Lower girdle75%
Top View
6.83 mm6.86 mm1.23 ctI / I1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 6525679970
Side View
Table 58.0%Crown 35°Girdle: MED-STKPavilion 40.8°Culet: NoneDepth 61.7%

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: €4,961 EUR|Low: €1,609 EUR|High: €4,961 EUR|Avg: €2,601 EUR
NZ Jewellers
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
October 31, 2026
Retailer 4€1,609 EUR
Retailer 2€1,764 EUR
Retailer 6€2,125 EUR
Retailer 11€2,180 EUR
Retailer 8€2,373 EUR
Retailer 10€2,373 EUR
Retailer 7€2,464 EUR
Retailer 3€2,691 EUR
Retailer 9€2,738 EUR
Retailer 12€2,823 EUR
Retailer 5€2,964 EUR
NZ Jewellers€4,961 EUR

20 data points across 12 retailers

8 retailers€1,764 EUR to €4,961 EUR

B+
Cheapest Retailer
-
€1,764 EUR
HK$15,400 HKD
B+
Retailer 2
-
€2,125 EUR
$2,374 USD
View
B
Retailer 3
-
€2,373 EUR
$2,651 USD
View
B
Retailer 4
-
€2,373 EUR
$2,651 USD
View
B
Retailer 5
-
€2,464 EUR
$2,753 USD
View
B
Retailer 6
-
€2,738 EUR
$3,059 USD
View
B
Retailer 7
-
€2,964 EUR
View
Most Expensive
C
NZ Jewellers
594c4cb7-0275-4f64-a5a2-a01b1f384d73 · Oct 30
€4,961 EUR
$5,542 USD
View
7 more retailers have this diamond
Prices start from €1,764 EURSave up to €3,196 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+
1.23ct Round
€1,764 EUR