CaratHunter
Plans
Cushion|Natural|GIA

1.00ct H SI2 Cushion Natural Diamond

EX • H/SI2 • GIA 6431253100

Certificate GIA 6431253100

Diamond specifications and retailer prices

From $2,861 AUD
As of November 6, 2026
Save $3,247 AUD (53%) vs most expensive(unlock to see where)
15 retailers carry this diamond
Most expensive: $6,783 AUD at Queensmith · As of October 28, 2026
View at Queensmith

About this 1ct natural cushion diamond

This 1ct 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 6431253100. Listed at 15 retailers as of November 4, 2026, with a 113% 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

1.00
Carat
H
Colour
SI2
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryExcellent
FluorescenceFaint
OriginNatural
Grading LabGIA
CertificateGIA 6431253100
Dimensions5.99 × 5.21 × 3.62 mm
L/W Ratio1.15
Top View
5.99 mm5.21 mm1.00 ctH / SI2
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceFaint
CertificateGIA 6431253100
Side View
Table 62.0%CrownGirdle: STK-VTKPavilionCulet: NoneDepth 69.6%

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 6
Current: $6,783 AUD|Low: $2,679 AUD|High: $6,811 AUD|Avg: $4,003 AUD|+2.4%
Queensmith
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
November 6, 2026
Retailer 9$2,861 AUD
Retailer 8$2,922 AUD
Retailer 10$3,081 AUD
Retailer 7$3,099 AUD
Retailer 6$3,167 AUD
Retailer 2$3,438 AUD
Retailer 4$3,698 AUD
Retailer 3$4,341 AUD
Retailer 5$6,108 AUD
Queensmith$6,783 AUD

39 data points across 10 retailers

15 retailers$2,861 AUD to $6,108 AUD

B+
Cheapest Retailer
-
$2,861 AUD
B+
Retailer 2
-
$2,922 AUD
View
Final sale: no returns
B+
Retailer 3
-
$3,081 AUD
View
B+
Retailer 4
-
$3,099 AUD
View
Retailer 5
-
$3,167 AUD
View
Price last confirmed 9 days ago
B+
Retailer 6
-
$3,247 AUD
View
B+
Retailer 7
-
$3,336 AUD
View
B+
Retailer 8
-
$3,438 AUD
View
B+
Retailer 9
-
$3,522 AUD
View
B+
Retailer 10
-
$3,522 AUD
View
B
Retailer 11
-
$3,639 AUD
View
B+
Retailer 12
-
$3,698 AUD
View
B
Retailer 13
-
$4,341 AUD
View
B
Retailer 14
-
$6,108 AUD
View
Most Expensive
Queensmith
6431253100 · Oct 28
$6,783 AUD
£3,670 GBP
View
Price last confirmed 9 days ago
14 more retailers have this diamond
Prices start from $2,861 AUDSave up to $3,247 AUD

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+
1.00ct Cushion
$2,861 AUD