Cushion|Natural|GIA

1.23ct G SI1 Cushion Natural Diamond

EX • G/SI1 • GIA 6545684900

Certificate GIA 6545684900

Diamond specifications and retailer prices

From $1,983 USD
As of November 6, 2026
Save $2,362 USD (54%) vs most expensive(unlock to see where)
13 retailers carry this diamond
Most expensive: $5,525 USD 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
Color
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

How it works →
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: $5,525 USD|Low: $1,983 USD|High: $5,537 USD|Avg: $2,979 USD|+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 6, 2026
Retailer 2$1,983 USD
Retailer 13$2,296 USD
Retailer 5$2,352 USD
Retailer 8$2,352 USD
Retailer 4$2,410 USD
Retailer 3$2,504 USD
Retailer 12$2,627 USD
Retailer 9$2,631 USD
Retailer 11$2,700 USD
Retailer 7$3,035 USD
Retailer 6$3,089 USD
Retailer 10$4,345 USD
Queensmith$5,525 USD

24 data points across 13 retailers

13 retailers$1,983 USD to $4,345 USD

A
Cheapest Retailer
-
$1,983 USD
A
Retailer 2
-
$2,296 USD
View
Final sale: no returns
A
Retailer 3
-
$2,352 USD
View
A
Retailer 4
-
$2,352 USD
View
A
Retailer 5
-
$2,410 USD
View
Retailer 6
-
$2,504 USD
View
Price last confirmed 9 days ago
B+
Retailer 7
-
$2,627 USD
View
A
Retailer 8
-
$2,631 USD
View
B+
Retailer 9
-
$2,700 USD
View
B+
Retailer 10
-
$3,035 USD
View
B+
Retailer 11
-
$3,089 USD
View
B
Retailer 12
-
$4,345 USD
View
Most Expensive
Queensmith
6545684900 · Oct 28
$5,525 USD
£4,350 GBP
View
Price last confirmed 9 days ago
12 more retailers have this diamond
Prices start from $1,983 USDSave up to $2,362 USD

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
$1,983 USD