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Cushion|Natural|GIA

1.60ct I SI1 Cushion Natural Diamond

EX • I/SI1 • GIA 6224961708

Certificate GIA 6224961708

Diamond specifications and retailer prices

From $5,451 AUD
$3,820 USD
As of October 31, 2026
Save $194 AUD (3%) vs most expensive(unlock to see where)
5 retailers carry this diamond
Most expensive: $7,307 AUD at Ritani · As of October 20, 2026
View at Ritani

About this 1.6ct natural cushion diamond

This 1.6ct natural cushion sits in the one-and-a-half to two carat band, graded I colour (near-colourless) and SI1 clarity (slightly-included), with a top-tier cut grade stated by the retailer rather than the lab and certified by GIA 6224961708. Listed at 5 retailers as of October 31, 2026, with a relatively tight 4% spread, which is unusual at this carat range and suggests competitive pricing across the listings. 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
I
Colour
SI1
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryVery Good
FluorescenceFaint
Crown angle36.9°
Pavilion angle62.5°
OriginNatural
Grading LabGIA
CertificateGIA 6224961708
Dimensions6.58 × 6.58 × 4.43 mm
L/W Ratio1.00
Top View
6.58 mm6.58 mm1.60 ctI / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryVery Good
FluorescenceFaint
CertificateGIA 6224961708
Side View
Table 63.0%Crown 36.9°Girdle: MED-THKPavilion 62.5°Culet: NoneDepth 67.4%

Caratlytics Score

How it works →
A
Excellent
Excellent quality and great value
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See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Oct 31
Current: $5,451 AUD|Low: $4,459 AUD|High: $8,963 AUD|Avg: $6,503 AUD|+0.3%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Ritani
October 31, 2026
Retailer 6$4,459 AUD
Retailer 4$5,037 AUD
Retailer 5$5,422 AUD
Retailer 1$5,451 AUD
Retailer 3$5,645 AUD
Retailer 2$6,568 AUD
Retailer 8$6,571 AUD
Ritani$7,307 AUD
Retailer 10$7,750 AUD
Retailer 9$8,239 AUD
Retailer 7$8,963 AUD

8 data points across 11 retailers

5 retailers$5,451 AUD to $5,645 AUD

Retailer 1
-
$5,037 AUD
$3,530 USD
Price last confirmed 10 days ago
Retailer 2
-
$5,422 AUD
£2,992 GBP
View
Price last confirmed 10 days ago
A
Retailer 3
-
$5,451 AUD
$3,820 USD
View
A
Retailer 4
-
$5,645 AUD
$3,956 USD
View
Most Expensive
Ritani
D-SPPQUTN70Z · Oct 20
$7,307 AUD
$5,121 USD
View
Price last confirmed 13 days ago
4 more retailers have this diamond
Prices start from $5,451 AUDSave up to $194 AUD

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
1.60ct Cushion
$5,451 AUD