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Round|Natural|GIA

5.03ct L SI1 Round Natural Diamond

EX • L/SI1 • GIA 2156186321

Certificate GIA 2156186321

Diamond specifications and retailer prices

From $64,555 AUD
As of November 4, 2026
Save $6,260 AUD (9%) vs most expensive(unlock to see where)
4 retailers carry this diamond
Most expensive: $70,815 AUD at 77 Diamonds · As of November 6, 2026
View at 77 Diamonds

About this 5.03ct natural round diamond

This 5.03ct 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 2156186321. Listed at 4 retailers as of November 4, 2026, with a relatively tight 10% 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

5.03
Carat
L
Colour
SI1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceFaint
OriginNatural
Grading LabGIA
CertificateGIA 2156186321
Dimensions10.89 × 10.97 × 6.83 mm
L/W Ratio1.01
Culet sizeNone
Top View
10.89 mm10.97 mm5.03 ctL / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceFaint
CertificateGIA 2156186321
Side View
Table 56.0%CrownGirdle: MED-STKPavilionCulet: NoneDepth 62.5%

Caratlytics Score

How it works →
B+
Very Good
Strong quality and value balance
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Price History

Last verified: Nov 4
Current: $70,815 AUD|Low: $64,555 AUD|High: $71,986 AUD|Avg: $67,957 AUD|+0.8%
77 Diamonds
Retailer 2
November 6, 2026
Retailer 2$64,555 AUD
77 Diamonds$70,815 AUD

34 data points across 2 retailers

4 retailers$64,555 AUD to $70,815 AUD

B+
Cheapest Retailer
-
$64,555 AUD
Retailer 2
-
$64,555 AUD
View
Price last confirmed 18 days ago
Retailer 3
-
$64,555 AUD
View
Price last confirmed 30 days ago
Most Expensive
B
77 Diamonds
RBMBEBYJZKCH · Nov 6
$70,815 AUD
£39,034 GBP
View
3 more retailers have this diamond
Prices start from $64,555 AUDSave up to $6,260 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+
5.03ct Round
$64,555 AUD