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Cushion|Natural|GIA

1.60ct E SI1 Cushion Natural Diamond

EX • E/SI1 • GIA 6442516462

Certificate GIA 6442516462

Diamond specifications and retailer prices

From $15,305 NZD
$8,626 USD
As of October 30, 2026
Save $5,353 NZD (26%) vs most expensive(unlock to see where)
3 retailers carry this diamond
Most expensive: $20,658 NZD at 77 Diamonds · As of October 30, 2026
View at 77 Diamonds

About this 1.6ct natural cushion diamond

This 1.6ct natural cushion sits in the one-and-a-half to two carat band, graded E colour (colourless) and SI1 clarity (slightly-included), with a top-tier cut grade stated by the retailer rather than the lab and certified by GIA 6442516462. Listed at 3 retailers as of October 30, 2026, with prices from $15,305 to $20,658, a $5,353 spread on the same certified stone. 77 Diamonds lists it at $20,658. SI-grade stones are eye-clean roughly 60 to 70% of the time at this carat range. Check the inclusion plot on the cert and ask the retailer for high-resolution video before buying.

The 4Cs

1.60
Carat
E
Colour
SI1
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryExcellent
FluorescenceFaint
OriginNatural
Grading LabGIA
CertificateGIA 6442516462
Dimensions7.04 × 6.35 × 4.28 mm
L/W Ratio1.11
Top View
7.04 mm6.35 mm1.60 ctE / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceFaint
CertificateGIA 6442516462
Side View
Table 62.0%CrownGirdle: STK-VTKPavilionCulet: NoneDepth 67.4%

Caratlytics Score

How it works →
B+
Very Good
Strong quality and value balance
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See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Oct 30
Current: $20,658 NZD|Low: $15,156 NZD|High: $20,762 NZD|Avg: $17,936 NZD|+1.8%
77 Diamonds
Retailer 2
October 30, 2026
Retailer 2$15,305 NZD
77 Diamonds$20,658 NZD

33 data points across 2 retailers

3 retailers$15,305 NZD to $20,658 NZD

B+
Cheapest Retailer
-
$15,305 NZD
$8,626 USD
B+
Retailer 2
-
$16,787 NZD
$9,461 USD
View
Most Expensive
B
77 Diamonds
CUSZMHXPEAZK · Oct 30
$20,658 NZD
£9,168 GBP
View
2 more retailers have this diamond
Prices start from $15,305 NZDSave up to $5,353 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+
1.60ct Cushion
$15,305 NZD