Cushion|Natural|GIA

1.60ct E SI1 Cushion Natural Diamond

EX • E/SI1 • GIA 6442516462

Certificate GIA 6442516462

Diamond specifications and retailer prices

From £6,438 GBP
$8,626 USD
As of October 29, 2026
Save £2,252 GBP (26%) vs most expensive(unlock to see where)
3 retailers carry this diamond
Most expensive: £8,689 GBP 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 29, 2026, with prices from £6,438 to £8,689, a £2,252 spread on the same certified stone. 77 Diamonds lists it at £8,689. 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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Price History

Last verified: Oct 29
Current: £8,689 GBP|Low: £6,375 GBP|High: £8,733 GBP|Avg: £7,542 GBP|+1.8%
77 Diamonds
Retailer 2
October 30, 2026
Retailer 2£6,438 GBP
77 Diamonds£8,689 GBP

34 data points across 2 retailers

3 retailers£6,438 GBP to £8,689 GBP

B+
Cheapest Retailer
-
£6,438 GBP
$8,626 USD
B+
Retailer 2
-
£7,061 GBP
$9,461 USD
View
Most Expensive
B
77 Diamonds
CUSZMHXPEAZK · Oct 30
£8,689 GBP
View
2 more retailers have this diamond
Prices start from £6,438 GBPSave up to £2,252 GBP

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
£6,438 GBP