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Cushion|Natural|GIA

1.20ct K SI2 Cushion Natural Diamond

K/SI2 • GIA 6555120450

Shape and cutting style on the report: Old miner

Certificate GIA 6555120450

Diamond specifications and retailer prices

From $4,780 NZD
$2,650 USD
As of November 6, 2026
2 retailers carry this diamond
Most expensive: $4,780 NZD at Brilliant Earth
View at Brilliant Earth

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 SI2 clarity (slightly-included) and certified by GIA 6555120450. Listed at 2 retailers as of November 6, 2026. 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

1.20
Carat
K
Colour
SI2
Clarity
-
Cut

Specifications

Cut
PolishExcellent
SymmetryVery Good
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 6555120450
Dimensions7.71 × 5.31 × 3.46 mm
L/W Ratio1.45
Top View
7.71 mm5.31 mm1.20 ctK / SI2
OriginNatural
PolishExcellent
SymmetryVery Good
FluorescenceNone
CertificateGIA 6555120450
Side View
Table 59.0%CrownGirdle: MED-THKPavilionCulet: NoneDepth 65.1%

Caratlytics Score

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B
Good
Decent quality, room for better deals
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Price History

Last verified: Nov 6
Current: $4,780 NZD|Low: $4,275 NZD|High: $5,634 NZD|Avg: $4,897 NZD
Brilliant Earth
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
October 19, 2026
Retailer 3$4,275 NZD
Retailer 2$4,466 NZD
Retailer 5$4,766 NZD
Brilliant Earth$4,780 NZD
Retailer 6$4,807 NZD
Retailer 4$5,634 NZD

8 data points across 6 retailers

2 retailers

Retailer 1
-
$4,766 NZD
Price last confirmed 36 days ago
Most Expensive
B
Brilliant Earth
21541741A · Nov 6
$4,780 NZD
$2,650 USD
View
1 more retailer has this diamond

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
$4,780 NZD