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Round|Natural|GIA

6.17ct K SI1 Round Natural Diamond

EX • K/SI1 • GIA 7551506335

Certificate GIA 7551506335

Diamond specifications and retailer prices

From $92,655 AUD
As of November 6, 2026
Save $78,151 AUD (46%) vs most expensive(unlock to see where)
7 retailers carry this diamond
Most expensive: $170,806 AUD at MOH London · As of November 4, 2026
View at MOH London

About this 6.17ct natural round diamond

This 6.17ct 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 7551506335. Listed at 7 retailers as of November 4, 2026, with prices from $92,655 to $170,806, a $78,151 spread on the same certified stone. MOH London lists it at $170,806. 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

6.17
Carat
K
Colour
SI1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle35.5°
Pavilion angle40.8°
OriginNatural
Grading LabGIA
CertificateGIA 7551506335
Dimensions11.61 × 11.69 × 7.28 mm
L/W Ratio1.01
Culet sizeNone
Key to symbols
Crystal, Cloud, Feather, Needle, Natural
Top View
11.61 mm11.69 mm6.17 ctK / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 7551506335
Side View
Table 57.0%Crown 35.5°Girdle: MED-STKPavilion 40.8°Culet: NoneDepth 62.5%

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: $170,806 AUD|Low: $92,655 AUD|High: $174,067 AUD|Avg: $114,525 AUD|-1.9%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
November 6, 2026
Retailer 8$92,655 AUD
Retailer 5$98,601 AUD
Retailer 10$99,535 AUD
Retailer 6$104,728 AUD
Retailer 7$107,307 AUD
Retailer 2$107,973 AUD
Retailer 9$109,003 AUD
Retailer 4$121,981 AUD
Retailer 3$126,534 AUD
MOH London$170,806 AUD

42 data points across 10 retailers

7 retailers$92,655 AUD to $170,806 AUD

A
Cheapest Retailer
-
$92,655 AUD
A
Retailer 2
-
$98,601 AUD
View
Retailer 3
-
$104,728 AUD
View
Price last confirmed 9 days ago
B+
Retailer 4
-
$107,307 AUD
View
B+
Retailer 5
-
$107,973 AUD
View
B+
Retailer 6
-
$121,981 AUD
View
Most Expensive
B
MOH London
63111AA68 · Nov 4
$170,806 AUD
£94,150 GBP
View
6 more retailers have this diamond
Prices start from $92,655 AUDSave up to $78,151 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
6.17ct Round
$92,655 AUD