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Cushion|Natural|GIA

1.61ct J SI1 Cushion Natural Diamond

EX • J/SI1 • GIA 1236946437

Certificate GIA 1236946437

Diamond specifications and retailer prices

From $3,909 AUD
HK$21,400 HKD
As of October 29, 2026
Save $2,324 AUD (37%) vs most expensive(unlock to see where)
6 retailers carry this diamond
Most expensive: $9,093 AUD at MOH London · As of October 26, 2026
View at MOH London

About this 1.61ct natural cushion diamond

This 1.61ct natural cushion sits in the one-and-a-half to two carat band, graded J 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 1236946437. Listed at 6 retailers as of October 27, 2026, with a 59% spread between the cheapest and most expensive listing. That is exactly the kind of price-discovery gap Carat Hunter was built to surface. 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

1.61
Carat
J
Colour
SI1
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Pavilion angle36.25°
OriginNatural
Grading LabGIA
CertificateGIA 1236946437
Dimensions7.91 × 5.90 × 4.12 mm
L/W Ratio1.34
Key to symbols
Feather, Crystal, Cloud, Needle
Top View
7.91 mm5.90 mm1.61 ctJ / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 1236946437
Side View
Table 67.0%CrownGirdle: THK-VTKPavilion 36.25°Culet: NoneDepth 69.9%

Caratlytics Score

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

Price History

Last verified: Oct 29
Current: $9,093 AUD|Low: $3,909 AUD|High: $9,891 AUD|Avg: $6,100 AUD|-8.1%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
October 28, 2026
Retailer 2$3,909 AUD
Retailer 5$4,910 AUD
Retailer 6$5,401 AUD
Retailer 3$5,495 AUD
Retailer 7$5,758 AUD
Retailer 4$6,233 AUD
Retailer 8$7,605 AUD
MOH London$9,093 AUD

25 data points across 8 retailers

6 retailers$3,909 AUD to $6,233 AUD

A
Cheapest Retailer
-
$3,909 AUD
HK$21,400 HKD
B+
Retailer 2
-
$4,910 AUD
$3,441 USD
View
B+
Retailer 3
-
$5,495 AUD
SGD 5,204 SGD
View
B+
Retailer 4
-
$5,758 AUD
View
B+
Retailer 5
-
$6,233 AUD
€4,160 EUR
View
Most Expensive
MOH London
58224E532 · Oct 26
$9,093 AUD
£5,018 GBP
View
Price last confirmed 7 days ago
5 more retailers have this diamond
Prices start from $3,909 AUDSave up to $2,324 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
1.61ct Cushion
$3,909 AUD