Cushion|Natural|GIA

1.23ct G SI1 Cushion Natural Diamond

EX • G/SI1 • GIA 6545684900

Certificate GIA 6545684900

Diamond specifications and retailer prices

From €1,776 EUR
As of November 6, 2026
Save €2,116 EUR (54%) vs most expensive(unlock to see where)
13 retailers carry this diamond
Most expensive: €4,948 EUR at Queensmith · As of October 28, 2026
View at Queensmith

About this 1.23ct natural cushion diamond

This 1.23ct natural cushion sits in the classic one-carat band, graded G colour (near-colourless) and SI1 clarity (slightly-included), with a top-tier cut grade stated by the retailer rather than the lab and certified by GIA 6545684900. Listed at 13 retailers as of November 4, 2026, with a 119% 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

1.23
Carat
G
Colour
SI1
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryVery Good
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 6545684900
Dimensions6.22 × 5.77 × 3.73 mm
L/W Ratio1.08
Top View
6.22 mm5.77 mm1.23 ctG / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryVery Good
FluorescenceNone
CertificateGIA 6545684900
Side View
Table 69.0%CrownGirdle: MED-THKPavilionCulet: NoneDepth 64.6%

Caratlytics Score

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A
Excellent
Excellent quality and great value
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See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 6
Current: €4,948 EUR|Low: €1,776 EUR|High: €4,959 EUR|Avg: €2,665 EUR|+3.1%
Queensmith
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 7€1,776 EUR
Retailer 3€2,056 EUR
Retailer 5€2,107 EUR
Retailer 10€2,107 EUR
Retailer 6€2,145 EUR
Retailer 4€2,243 EUR
Retailer 13€2,353 EUR
Retailer 2€2,356 EUR
Retailer 12€2,418 EUR
Retailer 9€2,718 EUR
Retailer 8€2,767 EUR
Retailer 11€3,892 EUR
Queensmith€4,948 EUR

25 data points across 13 retailers

13 retailers€1,776 EUR to €3,892 EUR

A
Cheapest Retailer
-
€1,776 EUR
A
Retailer 2
-
€2,056 EUR
View
Final sale: no returns
A
Retailer 3
-
€2,107 EUR
View
A
Retailer 4
-
€2,107 EUR
View
A
Retailer 5
-
€2,145 EUR
View
Retailer 6
-
€2,243 EUR
View
Price last confirmed 9 days ago
B+
Retailer 7
-
€2,353 EUR
View
A
Retailer 8
-
€2,356 EUR
View
B+
Retailer 9
-
€2,418 EUR
View
B+
Retailer 10
-
€2,718 EUR
View
B+
Retailer 11
-
€2,767 EUR
View
B
Retailer 12
-
€3,892 EUR
View
Most Expensive
Queensmith
6545684900 · Oct 28
€4,948 EUR
£4,350 GBP
View
Price last confirmed 9 days ago
12 more retailers have this diamond
Prices start from €1,776 EURSave up to €2,116 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
1.23ct Cushion
€1,776 EUR