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Cushion|Natural|GIA

1.20ct H SI1 Cushion Natural Diamond

EX • H/SI1 • GIA 1559836848

Certificate GIA 1559836848

Diamond specifications and retailer prices

From $5,143 NZD
HK$22,600 HKD
As of November 2, 2026
Save $6,655 NZD (56%) vs most expensive(unlock to see where)
19 retailers carry this diamond
Most expensive: $11,798 NZD 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 1559836848. Listed at 19 retailers as of October 28, 2026, with prices from $5,143 to $11,798, a $6,655 spread on the same certified stone. Queensmith lists it at $11,798. 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
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryVery Good
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 1559836848
Dimensions7.70 × 5.44 × 3.42 mm
L/W Ratio1.42
Girdle conditionFaceted
Culet sizeNone
Key to symbols
Crystal, Feather, Cloud, Needle
Top View
7.70 mm5.44 mm1.20 ctH / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryVery Good
FluorescenceNone
CertificateGIA 1559836848
Side View
Table 67.0%CrownGirdle: STK-VTKPavilionCulet: NoneDepth 62.9%

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 2
Current: $11,798 NZD|Low: $5,143 NZD|High: $11,844 NZD|Avg: $7,418 NZD|+2.2%
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
Retailer 15
November 3, 2026
Retailer 14$5,143 NZD
Retailer 8$5,361 NZD
Retailer 9$6,081 NZD
Retailer 7$6,143 NZD
Retailer 4$6,283 NZD
Retailer 15$6,640 NZD
Retailer 6$6,863 NZD
Retailer 11$6,963 NZD
Retailer 3$7,068 NZD
Retailer 13$7,130 NZD
Retailer 10$7,334 NZD
Retailer 2$7,936 NZD
Retailer 5$8,436 NZD
Retailer 12$11,385 NZD
Queensmith$11,798 NZD

25 data points across 15 retailers

19 retailers$5,143 NZD to $11,798 NZD

B+
Cheapest Retailer
-
$5,143 NZD
HK$22,600 HKD
B+
Retailer 2
-
$5,361 NZD
₹287,162 INR
View
B+
Retailer 3
-
$6,081 NZD
SGD 4,622 SGD
View
B
Retailer 4
-
$6,143 NZD
$3,455 USD
View
B+
Retailer 5
-
$6,283 NZD
$3,534 USD
View
Final sale: no returns
B
Retailer 6
-
$6,353 NZD
$3,573 USD
View
B
Retailer 7
-
$6,356 NZD
$3,575 USD
View
B
Retailer 8
-
$6,640 NZD
£2,941 GBP
View
B
Retailer 9
-
$6,735 NZD
A$5,828 AUD
View
B
Retailer 10
-
$6,863 NZD
$3,860 USD
View
B
Retailer 11
-
$6,963 NZD
£3,084 GBP
View
B
Retailer 12
-
$7,068 NZD
$3,975 USD
View
B
Retailer 13
-
$7,130 NZD
$4,010 USD
View
B
Retailer 14
-
$7,334 NZD
$4,125 USD
View
Retailer 15
-
$7,412 NZD
A$6,414 AUD
View
Price last confirmed 25 days ago
B
Retailer 16
-
$7,936 NZD
€4,251 EUR
View
B
Retailer 17
-
$8,436 NZD
ZAR 76,651 ZAR
View
B
Retailer 18
-
$11,385 NZD
£5,042 GBP
View
Most Expensive
B
Queensmith
1559836848 · Oct 28
$11,798 NZD
£5,225 GBP
View
18 more retailers have this diamond
Prices start from $5,143 NZDSave up to $6,655 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.

B+
1.20ct Cushion
$5,143 NZD