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Cushion|Natural|GIA

1.51ct L SI1 Cushion Natural Diamond

VG • L/SI1 • GIA 5456783660

Certificate GIA 5456783660

Diamond specifications and retailer prices

From $3,279 NZD
As of November 6, 2026
Save $1,659 NZD (34%) vs most expensive(unlock to see where)
3 retailers carry this diamond
Most expensive: $4,939 NZD at 77 Diamonds · As of November 5, 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 L 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 5456783660. Listed at 3 retailers as of November 5, 2026, with prices from $3,279 to $4,939, a $1,659 spread on the same certified stone. 77 Diamonds lists it at $4,939. 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
L
Colour
SI1
Clarity
Very Good
Cut (retailer stated)

Specifications

Cut (retailer stated)Very Good
PolishExcellent
SymmetryExcellent
FluorescenceFaint
OriginNatural
Grading LabGIA
CertificateGIA 5456783660
Dimensions6.63 × 6.06 × 4.35 mm
L/W Ratio1.09
Top View
6.63 mm6.06 mm1.51 ctL / SI1
OriginNatural
CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceFaint
CertificateGIA 5456783660
Side View
Table 60.0%CrownGirdle: THK-ETKPavilionCulet: NoneDepth 71.9%

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 6
Current: $4,939 NZD|Low: $3,166 NZD|High: $5,482 NZD|Avg: $4,229 NZD|+1.3%
77 Diamonds
Retailer 2
Retailer 3
Retailer 4
November 5, 2026
Retailer 2$3,202 NZD
Retailer 3$3,279 NZD
77 Diamonds$4,939 NZD
Retailer 4$5,482 NZD

32 data points across 4 retailers

3 retailers$3,279 NZD to $4,939 NZD

B+
Cheapest Retailer
-
$3,279 NZD
B+
Retailer 2
-
$3,411 NZD
View
Most Expensive
B
77 Diamonds
CUSMBRZAECFTD · Nov 5
$4,939 NZD
£2,156 GBP
View
2 more retailers have this diamond
Prices start from $3,279 NZDSave up to $1,659 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+
1.51ct Cushion
$3,279 NZD