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Round|Natural|GIA

5.40ct L SI1 Round Natural Diamond

EX • L/SI1 • GIA 5201701666

Certificate GIA 5201701666

Diamond specifications and retailer prices

From $89,347 AUD
As of November 6, 2026
Save $32,171 AUD (26%) vs most expensive(unlock to see where)
5 retailers carry this diamond
Most expensive: $121,518 AUD at Cape Diamonds · As of November 1, 2026
View at Cape Diamonds

About this 5.4ct natural round diamond

This 5.4ct natural round sits in the over five carat band, graded L colour (faint-tinted) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by GIA 5201701666. Listed at 5 retailers as of November 1, 2026, with prices from $89,347 to $121,518, a $32,171 spread on the same certified stone. Cape Diamonds lists it at $121,518. 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

5.40
Carat
L
Colour
SI1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceStrong
Crown angle36°
Pavilion angle41°
OriginNatural
Grading LabGIA
CertificateGIA 5201701666
Dimensions11.07 × 11.16 × 6.97 mm
L/W Ratio1.01
Star length50%
Lower girdle75%
Top View
11.07 mm11.16 mm5.40 ctL / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceStrong
CertificateGIA 5201701666
Side View
Table 59.0%Crown 36°Girdle: Sli. ThickPavilion 41°Culet: NoneDepth 62.7%

Caratlytics Score

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B
Good
Decent quality, room for better deals
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See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 6
Current: $121,518 AUD|Low: $88,461 AUD|High: $124,285 AUD|Avg: $101,646 AUD|+2.1%
Cape Diamonds
Retailer 2
Retailer 3
Retailer 4
Retailer 5
November 5, 2026
Retailer 3$89,347 AUD
Retailer 5$91,014 AUD
Retailer 2$98,872 AUD
Retailer 4$104,031 AUD
Cape Diamonds$121,518 AUD

40 data points across 5 retailers

5 retailers$89,347 AUD to $121,518 AUD

B
Cheapest Retailer
-
$89,347 AUD
B
Retailer 2
-
$97,124 AUD
View
B
Retailer 3
-
$98,872 AUD
View
B
Retailer 4
-
$104,031 AUD
View
Most Expensive
C
Cape Diamonds
cert_5201701666 · Nov 1
$121,518 AUD
ZAR 1,374,260 ZAR
View
4 more retailers have this diamond
Prices start from $89,347 AUDSave up to $32,171 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.

B
5.40ct Round
$89,347 AUD