CaratHunter
Plans
Cushion|Natural|GIA

1.20ct K SI1 Cushion Natural Diamond

EX • K/SI1 • GIA 2556054396

Certificate GIA 2556054396

Diamond specifications and retailer prices

From $1,806 AUD
As of November 6, 2026
Save $2,488 AUD (58%) vs most expensive(unlock to see where)
15 retailers carry this diamond
Most expensive: $4,294 AUD at MOH London · As of November 4, 2026
View at MOH London

About this 1.2ct natural cushion diamond

This 1.2ct natural cushion sits in the classic one-carat band, graded K colour (faint-tinted) and SI1 clarity (slightly-included), with a top-tier cut grade stated by the retailer rather than the lab and certified by GIA 2556054396. Listed at 15 retailers as of November 4, 2026, with prices from $1,806 to $4,294, a $2,488 spread on the same certified stone. MOH London lists it at $4,294. 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

1.20
Carat
K
Colour
SI1
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 2556054396
Dimensions6.82 × 5.23 × 3.80 mm
L/W Ratio1.30
Top View
6.82 mm5.23 mm1.20 ctK / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 2556054396
Side View
Table 67.0%CrownGirdle: THK-VTKPavilionCulet: NoneDepth 72.8%

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: $4,294 AUD|Low: $1,806 AUD|High: $4,614 AUD|Avg: $2,760 AUD|-6.9%
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
Retailer 14
November 6, 2026
Retailer 10$1,806 AUD
Retailer 5$2,241 AUD
Retailer 4$2,265 AUD
Retailer 12$2,269 AUD
Retailer 13$2,311 AUD
Retailer 6$2,329 AUD
Retailer 9$2,445 AUD
Retailer 7$2,516 AUD
Retailer 11$2,562 AUD
Retailer 3$2,655 AUD
Retailer 8$3,000 AUD
Retailer 2$3,337 AUD
Retailer 14$3,756 AUD
MOH London$4,294 AUD

33 data points across 14 retailers

15 retailers$1,806 AUD to $4,294 AUD

A
Cheapest Retailer
-
$1,806 AUD
Retailer 2
-
$2,241 AUD
View
Price last confirmed 10 days ago
Retailer 3
-
$2,265 AUD
View
Price last confirmed 10 days ago
B+
Retailer 4
-
$2,269 AUD
View
Final sale: no returns
B+
Retailer 5
-
$2,311 AUD
View
Retailer 6
-
$2,329 AUD
View
Price last confirmed 8 days ago
B+
Retailer 7
-
$2,445 AUD
View
B+
Retailer 8
-
$2,516 AUD
View
B+
Retailer 9
-
$2,562 AUD
View
B+
Retailer 10
-
$2,655 AUD
View
B+
Retailer 11
-
$2,770 AUD
View
B+
Retailer 12
-
$3,000 AUD
View
B
Retailer 13
-
$3,337 AUD
View
B
Retailer 14
-
$3,756 AUD
View
Most Expensive
B
MOH London
12C279E0C · Nov 4
$4,294 AUD
£2,323 GBP
View
14 more retailers have this diamond
Prices start from $1,806 AUDSave up to $2,488 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
1.20ct Cushion
$1,806 AUD