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Round|Natural|GIA

5.15ct K SI1 Round Natural Diamond

EX • K/SI1 • GIA 5232020565

Certificate GIA 5232020565

Diamond specifications and retailer prices

From $82,934 AUD
As of November 6, 2026
Save $18,785 AUD (18%) vs most expensive(unlock to see where)
5 retailers carry this diamond
Most expensive: $101,720 AUD at 77 Diamonds · As of November 6, 2026
View at 77 Diamonds

About this 5.15ct natural round diamond

This 5.15ct natural round sits in the over five carat band, graded K colour (faint-tinted) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by GIA 5232020565. Listed at 5 retailers as of November 6, 2026, with prices from $82,934 to $101,720, a $18,785 spread on the same certified stone. 77 Diamonds lists it at $101,720. 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

5.15
Carat
K
Colour
SI1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle35°
Pavilion angle40.6°
OriginNatural
Grading LabGIA
CertificateGIA 5232020565
Dimensions10.99 × 10.92 × 6.76 mm
L/W Ratio1.01
Top View
10.99 mm10.92 mm5.15 ctK / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 5232020565
Side View
Table 59.0%Crown 35°Girdle: Slightly ThickPavilion 40.6°Culet: NoneDepth 61.9%

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 6
Current: $101,720 AUD|Low: $82,484 AUD|High: $105,646 AUD|Avg: $88,555 AUD|-1.3%
77 Diamonds
Retailer 2
Retailer 3
Retailer 4
Retailer 5
November 6, 2026
Retailer 2$82,484 AUD
Retailer 3$82,934 AUD
Retailer 4$83,452 AUD
Retailer 5$86,699 AUD
77 Diamonds$101,720 AUD

38 data points across 5 retailers

5 retailers$82,934 AUD to $101,720 AUD

Retailer 1
-
$82,484 AUD
Price last confirmed 9 days ago
A
Retailer 2
-
$82,934 AUD
View
A
Retailer 3
-
$83,452 AUD
View
B+
Retailer 4
-
$86,699 AUD
View
Most Expensive
B+
77 Diamonds
RBZQAJVNJQX · Nov 6
$101,720 AUD
£56,069 GBP
View
4 more retailers have this diamond
Prices start from $82,934 AUDSave up to $18,785 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
5.15ct Round
$82,934 AUD