Round|Natural|GIA

1.51ct I VS1 Round Natural Diamond

ID • I/VS1 • GIA 307

Certificate GIA 307

Diamond specifications and retailer prices

From €5,554 EUR
$6,229 USD
As of November 1, 2026
Save €3,613 EUR (39%) vs most expensive(unlock to see where)
7 retailers carry this diamond
Most expensive: €9,166 EUR at Helzberg Diamonds · As of November 1, 2026
View at Helzberg Diamonds

About this 1.51ct natural round diamond

This 1.51ct natural round sits in the one-and-a-half to two carat band, graded I colour (near-colourless) and VS1 clarity (very-slightly-included), with a top-tier cut grade and certified by GIA. Listed at 7 retailers as of November 1, 2026, with prices from €5,554 to €9,166, a €3,613 spread on the same certified stone. Helzberg Diamonds lists it at €9,166. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.51
Carat
I
Color
VS1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 307
Dimensions7.26 × 7.32 × 4.58 mm
L/W Ratio1.01
Top View
7.26 mm7.32 mm1.51 ctI / VS1
OriginNatural
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 307
Side View
Table 58.0%CrownGirdle: THN-STKPavilionCulet: NoneDepth 62.8%

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 1
Current: €9,166 EUR|Low: €5,554 EUR|High: €9,573 EUR|Avg: €7,173 EUR|-4.2%
Helzberg Diamonds
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
October 28, 2026
Retailer 5€5,554 EUR
Retailer 4€5,893 EUR
Retailer 2€5,909 EUR
Retailer 3€5,991 EUR
Retailer 7€6,478 EUR
Retailer 6€7,035 EUR
Retailer 8€8,028 EUR
Retailer 9€9,015 EUR
Helzberg Diamonds€9,166 EUR

34 data points across 9 retailers

7 retailers€5,554 EUR to €9,166 EUR

A
Cheapest Retailer
-
€5,554 EUR
$6,229 USD
A
Retailer 2
-
€5,893 EUR
$6,610 USD
View
A
Retailer 3
-
€5,909 EUR
$6,628 USD
View
A
Retailer 4
-
€5,991 EUR
$6,719 USD
View
Retailer 5
-
€6,478 EUR
£5,721 GBP
View
Price last confirmed 14 days ago
B+
Retailer 6
-
€7,035 EUR
$7,890 USD
View
Most Expensive
B+
Helzberg Diamonds
XZRMLMLHOHMPG · Nov 1
€9,166 EUR
$10,281 USD
View
6 more retailers have this diamond
Prices start from €5,554 EURSave up to €3,613 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
1.51ct Round
€5,554 EUR