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Cushion|Natural|GIA

1.30ct K SI1 Cushion Natural Diamond

VG • K/SI1 • GIA 6541556349

Certificate GIA 6541556349

Diamond specifications and retailer prices

From $2,281 AUD
As of November 6, 2026
Save $1,879 AUD (45%) vs most expensive(unlock to see where)
13 retailers carry this diamond
Most expensive: $5,373 AUD at MOH London · As of October 26, 2026
View at MOH London

About this 1.3ct natural cushion diamond

This 1.3ct natural cushion sits in the one-and-a-quarter to one-and-a-half carat band, graded K colour (faint-tinted) and SI1 clarity (slightly-included), with a very-good cut grade stated by the retailer rather than the lab and certified by GIA 6541556349. Listed at 13 retailers as of November 6, 2026, with a 82% spread between the cheapest and most expensive listing. That is exactly the kind of price-discovery gap Carat Hunter was built to surface. Cut grade matters more than carat or clarity for visible brilliance. If you can shift budget toward an Excellent or Ideal cut, do it before chasing higher colour or clarity.

The 4Cs

1.30
Carat
K
Colour
SI1
Clarity
Very Good
Cut (retailer stated)

Specifications

Cut (retailer stated)Very Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 6541556349
Dimensions7.29 × 5.59 × 3.82 mm
L/W Ratio1.30
Top View
7.29 mm5.59 mm1.30 ctK / SI1
OriginNatural
CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 6541556349
Side View
Table 65.0%CrownGirdle: MED-THKPavilionCulet: NoneDepth 68.4%

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: $5,373 AUD|Low: $2,281 AUD|High: $5,514 AUD|Avg: $3,377 AUD|-2.5%
MOH London
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 6$2,281 AUD
Retailer 11$2,767 AUD
Retailer 7$2,970 AUD
Retailer 13$3,056 AUD
Retailer 4$3,062 AUD
Retailer 10$3,100 AUD
Retailer 5$3,128 AUD
Retailer 3$3,263 AUD
Retailer 2$3,327 AUD
Retailer 12$3,342 AUD
Retailer 9$3,737 AUD
Retailer 8$4,160 AUD
MOH London$5,373 AUD

22 data points across 13 retailers

13 retailers$2,281 AUD to $4,160 AUD

A
Cheapest Retailer
-
$2,281 AUD
A
Retailer 2
-
$2,767 AUD
View
A
Retailer 3
-
$2,970 AUD
View
A
Retailer 4
-
$3,056 AUD
View
Retailer 5
-
$3,062 AUD
View
Price last confirmed 9 days ago
A
Retailer 6
-
$3,100 AUD
View
A
Retailer 7
-
$3,128 AUD
View
A
Retailer 8
-
$3,263 AUD
View
B+
Retailer 9
-
$3,327 AUD
View
A
Retailer 10
-
$3,342 AUD
View
B+
Retailer 11
-
$3,737 AUD
View
B+
Retailer 12
-
$4,160 AUD
View
Most Expensive
MOH London
FC4E4F787 · Oct 26
$5,373 AUD
£2,907 GBP
View
Price last confirmed 11 days ago
12 more retailers have this diamond
Prices start from $2,281 AUDSave up to $1,879 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.

A
1.30ct Cushion
$2,281 AUD