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Round|Natural|IGI

1.61ct L SI1 Round Natural Diamond

EX • L/SI1 • IGI 638474074

Shape and cutting style on the report: Round brilliant

Certificate IGI 638474074

Diamond specifications and retailer prices

From $1,534 AUD
As of November 5, 2026
Save $757 AUD (33%) vs most expensive(unlock to see where)
9 retailers carry this diamond
Most expensive: $2,291 AUD at Cape Diamonds · As of November 5, 2026
View at Cape Diamonds

About this 1.61ct natural round diamond

This 1.61ct natural round sits in the one-and-a-half to two carat band, graded L colour (faint-tinted) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by IGI 638474074. Listed at 9 retailers as of November 5, 2026, with prices from $1,534 to $2,291, a $757 spread on the same certified stone. Cape Diamonds lists it at $2,291. 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
L
Colour
SI1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle36°
Pavilion angle41.4°
OriginNatural
Grading LabIGI
CertificateIGI 638474074
Dimensions7.39 × 7.43 × 4.68 mm
L/W Ratio1.01
Girdle conditionFaceted
Culet sizePointed
Top View
7.39 mm7.43 mm1.61 ctL / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI 638474074
Side View
Table 59.0%Crown 36°Girdle: Slightly ThickPavilion 41.4°Culet: NoneDepth 63.1%

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: Nov 5
Current: $2,291 AUD|Low: $1,534 AUD|High: $2,295 AUD|Avg: $1,939 AUD|+2.7%
Cape Diamonds
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
November 6, 2026
Retailer 3$1,534 AUD
Retailer 4$1,738 AUD
Retailer 5$1,877 AUD
Retailer 6$1,877 AUD
Retailer 8$1,963 AUD
Retailer 7$2,036 AUD
Retailer 2$2,043 AUD
Retailer 9$2,068 AUD
Cape Diamonds$2,291 AUD

44 data points across 9 retailers

9 retailers$1,534 AUD to $2,291 AUD

A
Cheapest Retailer
-
$1,534 AUD
A
Retailer 2
-
$1,738 AUD
View
Retailer 3
-
$1,877 AUD
View
Price last confirmed 8 days ago
Retailer 4
-
$1,877 AUD
View
Price last confirmed 8 days ago
Retailer 5
-
$1,963 AUD
View
Price last confirmed 8 days ago
B+
Retailer 6
-
$2,036 AUD
View
A
Retailer 7
-
$2,043 AUD
View
B+
Retailer 8
-
$2,068 AUD
View
Most Expensive
B+
Cape Diamonds
cert_638474074 · Nov 5
$2,291 AUD
ZAR 25,906 ZAR
View
8 more retailers have this diamond
Prices start from $1,534 AUDSave up to $757 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 Round
$1,534 AUD