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Round|Natural|GIA

1.51ct L I1 Round Natural Diamond

EX • L/I1 • GIA 6421580846

Certificate GIA 6421580846

Diamond specifications and retailer prices

From €2,679 EUR
As of November 6, 2026
Save €1,423 EUR (35%) vs most expensive(unlock to see where)
12 retailers carry this diamond
Most expensive: €6,194 EUR at NZ Jewellers · As of October 27, 2026
View at NZ Jewellers

About this 1.51ct natural round diamond

This 1.51ct natural round sits in the one-and-a-half to two carat band, graded L colour (faint-tinted) and I1 clarity (included), with a top-tier cut grade and certified by GIA 6421580846. Listed at 12 retailers as of November 5, 2026, with a 53% spread between the cheapest and most expensive listing. That is exactly the kind of price-discovery gap Carat Hunter was built to surface. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.51
Carat
L
Colour
I1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle35°
Pavilion angle41°
OriginNatural
Grading LabGIA
CertificateGIA 6421580846
Dimensions7.33 × 7.36 × 4.54 mm
L/W Ratio1.00
Star length45%
Lower girdle80%
Top View
7.33 mm7.36 mm1.51 ctL / I1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 6421580846
Side View
Table 59.0%Crown 35°Girdle: MED-STKPavilion 41°Culet: NoneDepth 61.8%

Caratlytics Score

How it works →
B+
Very Good
Strong quality and value balance
Unlock full score analysis
See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 6
Current: €2,679 EUR|Low: €2,679 EUR|High: €4,230 EUR|Avg: €3,526 EUR|-1.8%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
November 6, 2026
Retailer 1€2,679 EUR
Retailer 3€3,169 EUR
Retailer 2€4,009 EUR
Retailer 4€4,230 EUR

42 data points across 4 retailers

12 retailers€2,679 EUR to €4,102 EUR

B+
Cheapest Retailer
-
€2,679 EUR
B
Retailer 2
-
€3,128 EUR
View
B
Retailer 3
-
€3,169 EUR
View
Retailer 4
-
€3,556 EUR
View
Price last confirmed 11 days ago
B
Retailer 5
-
€3,556 EUR
View
Retailer 6
-
€3,556 EUR
View
Price last confirmed 12 days ago
Retailer 7
-
€3,556 EUR
View
Price last confirmed 12 days ago
B
Retailer 8
-
€4,009 EUR
View
Retailer 9
-
€4,102 EUR
View
Price last confirmed 10 days ago
B
Retailer 10
-
€4,102 EUR
View
B
Retailer 11
-
€4,102 EUR
View
Most Expensive
NZ Jewellers
45f509f5-855f-4b6b-81b5-886313e593f2 · Oct 27
€6,194 EUR
$6,952 USD
View
Price last confirmed 10 days ago
11 more retailers have this diamond
Prices start from €2,679 EURSave up to €1,423 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+
1.51ct Round
€2,679 EUR