CaratHunter
Plans
Round|Natural|GIA

1.23ct G SI1 Round Natural Diamond

EX • G/SI1 • GIA 2557493818

Certificate GIA 2557493818

Diamond specifications and retailer prices

From €3,762 EUR
As of November 4, 2026
Save €2,952 EUR (44%) vs most expensive(unlock to see where)
12 retailers carry this diamond
Most expensive: €6,714 EUR at Wholesale Diamonds Direct · As of November 6, 2026
View at Wholesale Diamonds Direct

About this 1.23ct natural round diamond

This 1.23ct natural round sits in the classic one-carat band, graded G colour (near-colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by GIA 2557493818. Listed at 12 retailers as of November 4, 2026, with prices from €3,762 to €6,714, a €2,952 spread on the same certified stone. Wholesale Diamonds Direct lists it at €6,714. 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

1.23
Carat
G
Colour
SI1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle36°
Pavilion angle40.8°
OriginNatural
Grading LabGIA
CertificateGIA 2557493818
Dimensions6.81 × 6.86 × 4.26 mm
L/W Ratio1.01
Culet sizeNone
Key to symbols
Cloud, Twinning Wisp, Crystal, Feather
Top View
6.81 mm6.86 mm1.23 ctG / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 2557493818
Side View
Table 58.0%Crown 36°Girdle: MED-STKPavilion 40.8°Culet: NoneDepth 62.3%

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 4
Current: €4,675 EUR|Low: €3,762 EUR|High: €6,714 EUR|Avg: €4,869 EUR|+1.2%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Wholesale Diamonds Direct
November 6, 2026
Retailer 7€3,762 EUR
Retailer 5€4,066 EUR
Retailer 6€4,434 EUR
Retailer 4€4,565 EUR
Retailer 1€4,675 EUR
Retailer 3€4,906 EUR
Retailer 2€5,808 EUR
Wholesale Diamonds Direct€6,714 EUR

43 data points across 8 retailers

12 retailers€3,762 EUR to €6,714 EUR

B+
Cheapest Retailer
-
€3,762 EUR
B+
Retailer 2
-
€4,066 EUR
View
B+
Retailer 3
-
€4,434 EUR
View
B
Retailer 4
-
€4,545 EUR
View
B
Retailer 5
-
€4,565 EUR
View
B+
Retailer 6
-
€4,675 EUR
View
B
Retailer 7
-
€4,837 EUR
View
B
Retailer 8
-
€4,837 EUR
View
B
Retailer 9
-
€4,906 EUR
View
B
Retailer 10
-
€4,998 EUR
View
B
Retailer 11
-
€5,808 EUR
View
Most Expensive
B
Wholesale Diamonds Direct
252731742 · Nov 6
€6,714 EUR
$7,496 USD
View
11 more retailers have this diamond
Prices start from €3,762 EURSave up to €2,952 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
€3,762 EUR