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Cushion|Natural|GIA

1.20ct K SI1 Cushion Natural Diamond

VG • K/SI1 • GIA 2151597618

Certificate GIA 2151597618

Diamond specifications and retailer prices

From $3,436 NZD
As of November 1, 2026
Save $1,965 NZD (36%) vs most expensive(unlock to see where)
7 retailers carry this diamond
Most expensive: $5,402 NZD at 77 Diamonds · As of November 6, 2026
View at 77 Diamonds

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 very-good cut grade stated by the retailer rather than the lab and certified by GIA 2151597618. Listed at 7 retailers as of November 1, 2026, with prices from $3,436 to $5,402, a $1,965 spread on the same certified stone. 77 Diamonds lists it at $5,402. 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
SI1
Clarity
Very Good
Cut (retailer stated)

Specifications

Cut (retailer stated)Very Good
PolishGood
SymmetryExcellent
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 2151597618
Dimensions6.41 × 5.37 × 3.80 mm
L/W Ratio1.19
Top View
6.41 mm5.37 mm1.20 ctK / SI1
OriginNatural
CutVery Good
PolishGood
SymmetryExcellent
FluorescenceNone
CertificateGIA 2151597618
Side View
Table 60.0%CrownGirdle: ThickPavilionCulet: NoneDepth 70.8%

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: $5,402 NZD|Low: $3,436 NZD|High: $5,494 NZD|Avg: $4,172 NZD|+0.8%
77 Diamonds
Retailer 2
Retailer 3
Retailer 4
November 6, 2026
Retailer 2$3,436 NZD
Retailer 4$3,525 NZD
Retailer 3$4,272 NZD
77 Diamonds$5,402 NZD

37 data points across 4 retailers

7 retailers$3,436 NZD to $5,402 NZD

B+
Cheapest Retailer
-
$3,436 NZD
B+
Retailer 2
-
$3,507 NZD
View
B+
Retailer 3
-
$3,525 NZD
View
B+
Retailer 4
-
$3,714 NZD
View
B
Retailer 5
-
$3,877 NZD
View
B
Retailer 6
-
$4,272 NZD
View
Most Expensive
B
77 Diamonds
CUSZ2DHKCKUQ · Nov 6
$5,402 NZD
£2,358 GBP
View
6 more retailers have this diamond
Prices start from $3,436 NZDSave up to $1,965 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
$3,436 NZD