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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 $2,918 USD
HK$22,800 HKD
As of November 1, 2026
Save $3,717 USD (56%) vs most expensive(unlock to see where)
19 retailers carry this diamond
Most expensive: $6,636 USD 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 $2,918 to $6,636, a $3,717 spread on the same certified stone. Queensmith lists it at $6,636. 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
Color
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 1
Current: $6,636 USD|Low: $2,893 USD|High: $6,661 USD|Avg: $4,197 USD|+1.8%
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
Retailer 16
November 2, 2026
Retailer 14$2,918 USD
Retailer 10$3,040 USD
Retailer 4$3,406 USD
Retailer 3$3,455 USD
Retailer 2$3,534 USD
Retailer 11$3,765 USD
Retailer 16$3,860 USD
Retailer 9$3,916 USD
Retailer 6$4,007 USD
Retailer 7$4,040 USD
Retailer 5$4,153 USD
Retailer 8$4,169 USD
Retailer 15$4,519 USD
Retailer 13$4,745 USD
Retailer 12$6,455 USD
Queensmith$6,636 USD

26 data points across 16 retailers

19 retailers$2,918 USD to $6,636 USD

B+
Cheapest Retailer
-
$2,918 USD
HK$22,800 HKD
B+
Retailer 2
-
$3,040 USD
₹289,537 INR
View
B+
Retailer 3
-
$3,406 USD
SGD 4,603 SGD
View
B
Retailer 4
-
$3,455 USD
View
B
Retailer 5
-
$3,534 USD
View
Final sale: no returns
B
Retailer 6
-
$3,573 USD
View
B
Retailer 7
-
$3,575 USD
View
B
Retailer 8
-
$3,765 USD
£2,965 GBP
View
B
Retailer 9
-
$3,788 USD
A$5,828 AUD
View
B
Retailer 10
-
$3,860 USD
View
B
Retailer 11
-
$3,916 USD
£3,084 GBP
View
B
Retailer 12
-
$4,007 USD
View
B
Retailer 13
-
$4,040 USD
View
B
Retailer 14
-
$4,153 USD
View
Retailer 15
-
$4,169 USD
A$6,414 AUD
View
Price last confirmed 24 days ago
B
Retailer 16
-
$4,519 USD
€4,304 EUR
View
B
Retailer 17
-
$4,745 USD
ZAR 76,651 ZAR
View
B
Retailer 18
-
$6,455 USD
£5,083 GBP
View
Most Expensive
B
Queensmith
1559836848 · Oct 28
$6,636 USD
£5,225 GBP
View
18 more retailers have this diamond
Prices start from $2,918 USDSave up to $3,717 USD

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
$2,918 USD