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6.55ct G SI2 Round Natural Diamond

EX • G/SI2 • IGI 468180579

Shape and cutting style on the report: Round brilliant

Certificate IGI 468180579

Diamond specifications and retailer prices

From $123,510 CAD
$88,417 USD
As of October 30, 2026
Save $69,324 CAD (36%) vs most expensive(unlock to see where)
13 retailers carry this diamond
Most expensive: $192,834 CAD at MOH London · As of November 1, 2026
View at MOH London

About this 6.55ct natural round diamond

This 6.55ct natural round sits in the over five carat band, graded G colour (near-colourless) and SI2 clarity (slightly-included), with a top-tier cut grade and certified by IGI 468180579. Listed at 13 retailers as of October 30, 2026, with prices from $123,510 to $192,834, a $69,324 spread on the same certified stone. MOH London lists it at $192,834. 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

6.55
Carat
G
Color
SI2
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle33.3°
Pavilion angle40.9°
OriginNatural
Grading LabIGI
CertificateIGI 468180579
Dimensions12.12 × 12.06 × 7.28 mm
L/W Ratio1.00
Girdle conditionFaceted
Culet sizePointed
Cert comments
IDEAL CUT ROUND BRILLIANT
Top View
12.12 mm12.06 mm6.55 ctG / SI2
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI 468180579
Side View
Table 59.5%Crown 33.3°Girdle: MED-STKPavilion 40.9°Culet: NoneDepth 60.2%

Caratlytics Score

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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: Oct 30
Current: $192,834 CAD|Low: $117,641 CAD|High: $195,158 CAD|Avg: $141,596 CAD|+4.8%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
November 1, 2026
Retailer 11$123,510 CAD
Retailer 3$124,930 CAD
Retailer 6$128,617 CAD
Retailer 2$134,228 CAD
Retailer 9$136,290 CAD
Retailer 4$138,075 CAD
Retailer 10$141,968 CAD
Retailer 5$145,479 CAD
Retailer 8$147,647 CAD
Retailer 12$151,892 CAD
Retailer 7$153,325 CAD
MOH London$192,834 CAD

43 data points across 12 retailers

13 retailers$123,510 CAD to $192,834 CAD

A
Cheapest Retailer
-
$123,510 CAD
$88,417 USD
A
Retailer 2
-
$124,930 CAD
$89,434 USD
View
Final sale: no returns
A
Retailer 3
-
$128,617 CAD
$92,073 USD
View
Retailer 4
-
$128,617 CAD
$92,073 USD
View
Price last confirmed 11 days ago
A
Retailer 5
-
$134,228 CAD
£75,661 GBP
View
A
Retailer 6
-
$136,290 CAD
$97,566 USD
View
A
Retailer 7
-
$141,968 CAD
$101,631 USD
View
A
Retailer 8
-
$145,479 CAD
€99,185 EUR
View
A
Retailer 9
-
$147,647 CAD
$105,696 USD
View
A
Retailer 10
-
$151,892 CAD
$108,735 USD
View
A
Retailer 11
-
$153,325 CAD
$109,761 USD
View
Retailer 12
-
$153,325 CAD
$109,761 USD
View
Price last confirmed 9 days ago
Most Expensive
B+
MOH London
19068FAD5 · Nov 1
$192,834 CAD
£108,696 GBP
View
12 more retailers have this diamond
Prices start from $123,510 CADSave up to $69,324 CAD

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
6.55ct Round
$123,510 CAD