Round|Natural|GIA

1.51ct I VS1 Round Natural Diamond

ID • I/VS1 • GIA 307

Certificate GIA 307

Diamond specifications and retailer prices

From $6,229 USD
As of November 1, 2026
Save $4,052 USD (39%) vs most expensive(unlock to see where)
7 retailers carry this diamond
Most expensive: $10,281 USD 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 $6,229 to $10,281, a $4,052 spread on the same certified stone. Helzberg Diamonds lists it at $10,281. 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
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See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 1
Current: $10,281 USD|Low: $6,229 USD|High: $10,737 USD|Avg: $8,045 USD|-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$6,229 USD
Retailer 4$6,610 USD
Retailer 2$6,628 USD
Retailer 3$6,719 USD
Retailer 7$7,266 USD
Retailer 6$7,890 USD
Retailer 8$9,004 USD
Retailer 9$10,111 USD
Helzberg Diamonds$10,281 USD

34 data points across 9 retailers

7 retailers$6,229 USD to $10,281 USD

A
Cheapest Retailer
-
$6,229 USD
A
Retailer 2
-
$6,610 USD
View
A
Retailer 3
-
$6,628 USD
View
A
Retailer 4
-
$6,719 USD
View
Retailer 5
-
$7,266 USD
£5,721 GBP
View
Price last confirmed 14 days ago
B+
Retailer 6
-
$7,890 USD
View
Most Expensive
B+
Helzberg Diamonds
XZRMLMLHOHMPG · Nov 1
$10,281 USD
View
6 more retailers have this diamond
Prices start from $6,229 USDSave up to $4,052 USD

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
$6,229 USD