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Oval|Natural|GIA

1.60ct M SI1 Oval Natural Diamond

ID • M/SI1 • GIA 6561121121

Certificate GIA 6561121121

Diamond specifications and retailer prices

From $2,425 AUD
As of November 6, 2026
Save $1,742 AUD (42%) vs most expensive(unlock to see where)
14 retailers carry this diamond
Most expensive: $7,019 AUD at NZ Jewellers · As of October 9, 2026
View at NZ Jewellers

About this 1.6ct natural oval diamond

This 1.6ct natural oval sits in the one-and-a-half to two carat band, graded M colour (faint-tinted) and SI1 clarity (slightly-included), with a top-tier cut grade stated by the retailer rather than the lab and certified by GIA 6561121121. Listed at 14 retailers as of November 6, 2026, with a 72% 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

1.60
Carat
M
Colour
SI1
Clarity
Ideal
Cut (retailer stated)

Specifications

Cut (retailer stated)Ideal
PolishExcellent
SymmetryExcellent
FluorescenceFaint
OriginNatural
Grading LabGIA
CertificateGIA 6561121121
Dimensions8.90 × 6.33 × 4.02 mm
L/W Ratio1.41
Girdle conditionFaceted
Culet sizeNone
Key to symbols
Crystal, Feather, Needle, Cloud
Top View
8.90 mm6.33 mm1.60 ctM / SI1
OriginNatural
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceFaint
CertificateGIA 6561121121
Side View
Table 63.0%CrownGirdle: MED-VTKPavilionCulet: NoneDepth 63.6%

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: Nov 6
Current: $2,425 AUD|Low: $2,425 AUD|High: $4,279 AUD|Avg: $3,427 AUD|-11.8%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
November 6, 2026
Retailer 1$2,425 AUD
Retailer 6$3,099 AUD
Retailer 5$3,115 AUD
Retailer 2$3,346 AUD
Retailer 7$3,362 AUD
Retailer 8$3,560 AUD
Retailer 4$4,097 AUD
Retailer 3$4,167 AUD

39 data points across 8 retailers

14 retailers$2,425 AUD to $4,167 AUD

A
Cheapest Retailer
-
$2,425 AUD
B+
Retailer 2
-
$3,099 AUD
View
Final sale: no returns
A
Retailer 3
-
$3,115 AUD
View
B+
Retailer 4
-
$3,243 AUD
View
A
Retailer 5
-
$3,346 AUD
View
Retailer 6
-
$3,358 AUD
View
Price last confirmed 30 days ago
Retailer 7
-
$3,358 AUD
View
Price last confirmed 29 days ago
B+
Retailer 8
-
$3,362 AUD
View
B+
Retailer 9
-
$3,560 AUD
View
Retailer 10
-
$3,612 AUD
View
Price last confirmed 38 days ago
Retailer 11
-
$3,874 AUD
View
Price last confirmed 28 days ago
B+
Retailer 12
-
$4,097 AUD
View
B+
Retailer 13
-
$4,167 AUD
View
Most Expensive
NZ Jewellers
c5ba6d00-d51a-48ee-a872-fdafce3103e9 · Oct 9
$7,019 AUD
$4,823 USD
View
Price last confirmed 28 days ago
13 more retailers have this diamond
Prices start from $2,425 AUDSave up to $1,742 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 Oval
$2,425 AUD