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Cushion|Natural|GIA

1.23ct H SI2 Cushion Natural Diamond

EX • H/SI2 • GIA 1543953806

Certificate GIA 1543953806

Diamond specifications and retailer prices

From $4,178 NZD
As of November 6, 2026
Save $4,981 NZD (54%) vs most expensive(unlock to see where)
14 retailers carry this diamond
Most expensive: $10,802 NZD 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 H colour (near-colourless) and SI2 clarity (slightly-included), with a top-tier cut grade stated by the retailer rather than the lab and certified by GIA 1543953806. Listed at 14 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
H
Colour
SI2
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryVery Good
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 1543953806
Dimensions8.13 × 5.31 × 3.52 mm
L/W Ratio1.53
Girdle conditionFaceted
Culet sizeNone
Key to symbols
Crystal, Feather, Needle
Top View
8.13 mm5.31 mm1.23 ctH / SI2
OriginNatural
CutExcellent
PolishExcellent
SymmetryVery Good
FluorescenceNone
CertificateGIA 1543953806
Side View
Table 66.0%CrownGirdle: STK-VTKPavilionCulet: NoneDepth 66.3%

Caratlytics Score

How it works →
A
Excellent
Excellent quality and great value
Unlock full score analysis
See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 6
Current: $10,802 NZD|Low: $4,178 NZD|High: $10,836 NZD|Avg: $6,227 NZD|+2.5%
Queensmith
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
November 6, 2026
Retailer 11$4,178 NZD
Retailer 2$4,340 NZD
Retailer 8$4,961 NZD
Retailer 3$5,067 NZD
Retailer 4$5,542 NZD
Retailer 12$5,747 NZD
Retailer 7$5,778 NZD
Retailer 6$5,810 NZD
Retailer 10$5,935 NZD
Retailer 5$6,391 NZD
Retailer 9$9,158 NZD
Queensmith$10,802 NZD

31 data points across 12 retailers

14 retailers$4,178 NZD to $9,158 NZD

A
Cheapest Retailer
-
$4,178 NZD
A
Retailer 2
-
$4,340 NZD
View
B+
Retailer 3
-
$4,961 NZD
View
B+
Retailer 4
-
$5,067 NZD
View
Final sale: no returns
B+
Retailer 5
-
$5,220 NZD
View
Retailer 6
-
$5,542 NZD
View
Price last confirmed 9 days ago
B
Retailer 7
-
$5,625 NZD
View
B+
Retailer 8
-
$5,747 NZD
View
B+
Retailer 9
-
$5,778 NZD
View
B
Retailer 10
-
$5,810 NZD
View
B+
Retailer 11
-
$5,935 NZD
View
B+
Retailer 12
-
$6,391 NZD
View
B
Retailer 13
-
$9,158 NZD
View
Most Expensive
Queensmith
1543953806 · Oct 28
$10,802 NZD
£4,715 GBP
View
Price last confirmed 9 days ago
13 more retailers have this diamond
Prices start from $4,178 NZDSave up to $4,981 NZD

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
$4,178 NZD