CaratHunter
Plans
Cushion|Natural|GIA

1.20ct H SI1 Cushion Natural Diamond

ID • H/SI1 • GIA 5556836886

Certificate GIA 5556836886

Diamond specifications and retailer prices

From $3,635 AUD
HK$19,900 HKD
As of November 2, 2026
Save $5,308 AUD (59%) vs most expensive(unlock to see where)
19 retailers carry this diamond
Most expensive: $8,943 AUD at Queensmith · As of October 28, 2026
View at Queensmith

About this 1.2ct natural cushion diamond

This 1.2ct natural cushion sits in the classic one-carat band, graded H 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 5556836886. Listed at 19 retailers as of October 28, 2026, with prices from $3,635 to $8,943, a $5,308 spread on the same certified stone. Queensmith lists it at $8,943. 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
H
Colour
SI1
Clarity
Ideal
Cut (retailer stated)

Specifications

Cut (retailer stated)Ideal
PolishExcellent
SymmetryVery Good
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 5556836886
Dimensions7.40 × 5.38 × 3.64 mm
L/W Ratio1.38
Girdle conditionFaceted
Culet sizeNone
Key to symbols
Feather, Crystal, Cloud, Cavity, Needle
Top View
7.40 mm5.38 mm1.20 ctH / SI1
OriginNatural
CutIdeal
PolishExcellent
SymmetryVery Good
FluorescenceNone
CertificateGIA 5556836886
Side View
Table 63.0%CrownGirdle: STK-VTKPavilionCulet: NoneDepth 67.6%

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 2
Current: $8,943 AUD|Low: $3,635 AUD|High: $8,979 AUD|Avg: $5,321 AUD|+2.3%
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
Retailer 14
November 3, 2026
Retailer 10$3,635 AUD
Retailer 9$3,812 AUD
Retailer 6$4,303 AUD
Retailer 5$4,369 AUD
Retailer 14$4,459 AUD
Retailer 11$4,712 AUD
Retailer 4$4,876 AUD
Retailer 13$5,037 AUD
Retailer 2$5,048 AUD
Retailer 8$5,151 AUD
Retailer 12$5,653 AUD
Retailer 3$5,993 AUD
Retailer 7$8,079 AUD
Queensmith$8,943 AUD

24 data points across 14 retailers

19 retailers$3,635 AUD to $8,943 AUD

A
Cheapest Retailer
-
$3,635 AUD
HK$19,900 HKD
B+
Retailer 2
-
$3,812 AUD
₹254,414 INR
View
B+
Retailer 3
-
$4,303 AUD
SGD 4,075 SGD
View
B
Retailer 4
-
$4,369 AUD
$3,062 USD
View
B+
Retailer 5
-
$4,459 AUD
$3,125 USD
View
Final sale: no returns
B+
Retailer 6
-
$4,553 AUD
$3,191 USD
View
B+
Retailer 7
-
$4,559 AUD
$3,195 USD
View
B+
Retailer 8
-
$4,712 AUD
£2,600 GBP
View
B+
Retailer 9
-
$4,830 AUD
View
B+
Retailer 10
-
$4,876 AUD
$3,417 USD
View
B
Retailer 11
-
$5,037 AUD
$3,530 USD
View
B+
Retailer 12
-
$5,048 AUD
£2,786 GBP
View
B
Retailer 13
-
$5,113 AUD
SGD 4,842 SGD
View
Price last confirmed 7 days ago
B
Retailer 14
-
$5,151 AUD
$3,610 USD
View
Retailer 15
-
$5,276 AUD
View
Price last confirmed 30 days ago
B
Retailer 16
-
$5,653 AUD
€3,773 EUR
View
B
Retailer 17
-
$5,993 AUD
ZAR 67,848 ZAR
View
B
Retailer 18
-
$8,079 AUD
£4,458 GBP
View
Most Expensive
B
Queensmith
5556836886 · Oct 28
$8,943 AUD
£4,935 GBP
View
18 more retailers have this diamond
Prices start from $3,635 AUDSave up to $5,308 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
$3,635 AUD