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Round|Natural|GIA

6.18ct G SI1 Round Natural Diamond

EX • G/SI1 • GIA 6555268929

Certificate GIA 6555268929

Diamond specifications and retailer prices

From €148,961 EUR
$166,420 USD
As of November 2, 2026
Save €4,968 EUR (3%) vs most expensive(unlock to see where)
2 retailers carry this diamond
Most expensive: €153,929 EUR at Jared · As of November 2, 2026
View at Jared

About this 6.18ct natural round diamond

This 6.18ct natural round sits in the over five carat band, graded G colour (near-colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by GIA 6555268929. Listed at 2 retailers as of November 2, 2026, with a relatively tight 3% 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

6.18
Carat
G
Color
SI1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishVery Good
SymmetryExcellent
FluorescenceFaint
OriginNatural
Grading LabGIA
CertificateGIA 6555268929
Dimensions12.11 × 12.07 × 7.06 mm
L/W Ratio1.00
Culet sizeNone
Top View
12.11 mm12.07 mm6.18 ctG / SI1
OriginNatural
CutExcellent
PolishVery Good
SymmetryExcellent
FluorescenceFaint
CertificateGIA 6555268929
Side View
Table 62.0%CrownGirdle: THN-MEDPavilionCulet: NoneDepth 58.4%

Caratlytics Score

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B
Good
Decent quality, room for better deals
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Price History

Last verified: Nov 2
Current: €153,929 EUR|Low: €137,668 EUR|High: €163,170 EUR|Avg: €150,504 EUR
Jared
Retailer 2
Retailer 3
Retailer 4
November 2, 2026
Retailer 3€137,668 EUR
Retailer 2€148,961 EUR
Jared€153,929 EUR
Retailer 4€163,170 EUR

2 data points across 4 retailers

2 retailers€148,961 EUR to €153,929 EUR

B
Cheapest Retailer
-
€148,961 EUR
$166,420 USD
Most Expensive
B
Jared
159394591 · Nov 2
€153,929 EUR
$171,970 USD
View
1 more retailer has this diamond
Prices start from €148,961 EURSave up to €4,968 EUR

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
6.18ct Round
€148,961 EUR