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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 $2,330 SGD
As of November 6, 2026
Save $1,179 SGD (34%) vs most expensive(unlock to see where)
3 retailers carry this diamond
Most expensive: $3,509 SGD 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 $2,330 to $3,509, a $1,179 spread on the same certified stone. 77 Diamonds lists it at $3,509. 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: $3,509 SGD|Low: $2,249 SGD|High: $3,895 SGD|Avg: $3,005 SGD|+1.3%
77 Diamonds
Retailer 2
Retailer 3
Retailer 4
November 5, 2026
Retailer 2$2,275 SGD
Retailer 3$2,330 SGD
77 Diamonds$3,509 SGD
Retailer 4$3,895 SGD

32 data points across 4 retailers

3 retailers$2,330 SGD to $3,509 SGD

B+
Cheapest Retailer
-
$2,330 SGD
B+
Retailer 2
-
$2,424 SGD
View
Most Expensive
B
77 Diamonds
CUSMBRZAECFTD · Nov 5
$3,509 SGD
£2,156 GBP
View
2 more retailers have this diamond
Prices start from $2,330 SGDSave up to $1,179 SGD

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
$2,330 SGD