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Cushion|Natural|GIA

1.51ct E SI2 Cushion Natural Diamond

GD • E/SI2 • GIA 6421495236

Certificate GIA 6421495236

Diamond specifications and retailer prices

From $5,945 NZD
$3,339 USD
As of October 28, 2026
Save $2,925 NZD (33%) vs most expensive(unlock to see where)
12 retailers carry this diamond
Most expensive: $8,870 NZD at 77 Diamonds · As of October 30, 2026
View at 77 Diamonds

About this 1.51ct natural cushion diamond

This 1.51ct natural cushion sits in the one-and-a-half to two carat band, graded E colour (colourless) and SI2 clarity (slightly-included), with a standard cut grade stated by the retailer rather than the lab and certified by GIA 6421495236. Listed at 12 retailers as of October 28, 2026, with prices from $5,945 to $8,870, a $2,925 spread on the same certified stone. 77 Diamonds lists it at $8,870. 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

1.51
Carat
E
Colour
SI2
Clarity
Good
Cut (retailer stated)

Specifications

Cut (retailer stated)Good
PolishExcellent
SymmetryVery Good
FluorescenceMedium
OriginNatural
Grading LabGIA
CertificateGIA 6421495236
Dimensions6.91 × 6.25 × 4.08 mm
L/W Ratio1.11
Top View
6.91 mm6.25 mm1.51 ctE / SI2
OriginNatural
CutGood
PolishExcellent
SymmetryVery Good
FluorescenceMedium
CertificateGIA 6421495236
Side View
Table 58.0%CrownGirdle: THK-VTKPavilionCulet: NoneDepth 65.2%

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: Oct 28
Current: $8,870 NZD|Low: $5,877 NZD|High: $8,890 NZD|Avg: $7,282 NZD|+2.1%
77 Diamonds
Retailer 2
Retailer 3
Retailer 4
Retailer 5
October 30, 2026
Retailer 5$5,958 NZD
Retailer 3$6,054 NZD
Retailer 4$7,455 NZD
Retailer 2$8,239 NZD
77 Diamonds$8,870 NZD

41 data points across 5 retailers

12 retailers$5,945 NZD to $8,870 NZD

A
Cheapest Retailer
-
$5,945 NZD
$3,339 USD
A
Retailer 2
-
$5,958 NZD
$3,346 USD
View
A
Retailer 3
-
$6,054 NZD
$3,400 USD
View
A
Retailer 4
-
$6,091 NZD
$3,421 USD
View
B+
Retailer 5
-
$6,353 NZD
$3,568 USD
View
B+
Retailer 6
-
$6,413 NZD
A$5,542 AUD
View
B+
Retailer 7
-
$7,455 NZD
$4,187 USD
View
B+
Retailer 8
-
$7,905 NZD
$4,440 USD
View
B+
Retailer 9
-
$7,905 NZD
$4,440 USD
View
B+
Retailer 10
-
$8,172 NZD
$4,590 USD
View
B+
Retailer 11
-
$8,239 NZD
€4,407 EUR
View
Most Expensive
B+
77 Diamonds
CUSMBYQJVF43F · Oct 30
$8,870 NZD
£3,923 GBP
View
11 more retailers have this diamond
Prices start from $5,945 NZDSave up to $2,925 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.

A
1.51ct Cushion
$5,945 NZD