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Round|Natural|GIA

6.68ct I SI2 Round Natural Diamond

EX • I/SI2 • GIA 5121746284

Certificate GIA 5121746284

Diamond specifications and retailer prices

From €80,512 EUR
$89,949 USD
As of October 26, 2026
Save €3,748 EUR (4%) vs most expensive(unlock to see where)
7 retailers carry this diamond
Most expensive: €145,549 EUR at MOH London · As of October 19, 2026
View at MOH London

About this 6.68ct natural round diamond

This 6.68ct natural round sits in the over five carat band, graded I colour (near-colourless) and SI2 clarity (slightly-included), with a top-tier cut grade and certified by GIA 5121746284. Listed at 7 retailers as of October 26, 2026, with a relatively tight 5% 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

6.68
Carat
I
Color
SI2
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 5121746284
Dimensions12.16 × 12.09 × 7.39 mm
L/W Ratio1.01
Top View
12.16 mm12.09 mm6.68 ctI / SI2
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 5121746284
Side View
Table 60.0%CrownGirdle: ThinPavilionCulet: NoneDepth 61.2%

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: Oct 26
Current: €145,549 EUR|Low: €80,137 EUR|High: €146,519 EUR|Avg: €98,374 EUR|+0.4%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
October 26, 2026
Retailer 5€80,137 EUR
Retailer 7€80,512 EUR
Retailer 2€84,260 EUR
Retailer 6€91,702 EUR
Retailer 4€95,419 EUR
Retailer 3€109,866 EUR
MOH London€145,549 EUR

37 data points across 7 retailers

7 retailers€80,512 EUR to €84,260 EUR

Retailer 1
-
€80,137 EUR
$89,530 USD
Price last confirmed 15 days ago
A
Retailer 2
-
€80,512 EUR
$89,949 USD
View
Retailer 3
-
€84,146 EUR
$94,008 USD
View
Price last confirmed 7 days ago
A
Retailer 4
-
€84,260 EUR
₹8,965,346 INR
View
Retailer 5
-
€95,419 EUR
£83,939 GBP
View
Price last confirmed 13 days ago
Retailer 6
-
€109,866 EUR
View
Price last confirmed 7 days ago
Most Expensive
MOH London
0D0078F8B · Oct 19
€145,549 EUR
£128,038 GBP
View
Price last confirmed 14 days ago
6 more retailers have this diamond
Prices start from €80,512 EURSave up to €3,748 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.

A
6.68ct Round
€80,512 EUR