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Round|Natural|GIA

1.51ct F VS1 Round Natural Diamond

EX • F/VS1 • GIA 2506409673

Certificate GIA 2506409673

Diamond specifications and retailer prices

From $12,593 USD
As of November 7, 2026
Save $12,348 USD (50%) vs most expensive(unlock to see where)
22 retailers carry this diamond
Most expensive: $24,941 USD at Diamond Quarter · As of November 5, 2026
View at Diamond Quarter

About this 1.51ct natural round diamond

This 1.51ct natural round sits in the one-and-a-half to two carat band, graded F colour (colourless) and VS1 clarity (very-slightly-included), with a top-tier cut grade and certified by GIA 2506409673. Listed at 22 retailers as of November 5, 2026, with prices from $12,593 to $24,941, a $12,348 spread on the same certified stone. Diamond Quarter lists it at $24,941. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.51
Carat
F
Color
VS1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceFaint
Crown angle36.5°
Pavilion angle40.6°
OriginNatural
Grading LabGIA
CertificateGIA 2506409673
Dimensions7.27 × 7.31 × 4.57 mm
L/W Ratio1.01
Star length50%
Lower girdle75%
Culet sizeNone
Top View
7.27 mm7.31 mm1.51 ctF / VS1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceFaint
CertificateGIA 2506409673
Side View
Table 56.0%Crown 36.5°Girdle: MED-STKPavilion 40.6°Culet: NoneDepth 62.7%

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 7
Current: $16,937 USD|Low: $12,555 USD|High: $20,382 USD|Avg: $16,093 USD
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
November 7, 2026
Retailer 4$12,593 USD
Retailer 8$13,808 USD
Retailer 7$14,019 USD
Retailer 9$15,370 USD
Retailer 5$16,414 USD
Retailer 2$16,552 USD
Retailer 1$16,937 USD
Retailer 6$19,046 USD
Retailer 3$20,031 USD

45 data points across 9 retailers

22 retailers$12,593 USD to $24,941 USD

B+
Cheapest Retailer
-
$12,593 USD
B+
Retailer 2
-
$12,932 USD
View
B+
Retailer 3
-
$13,209 USD
View
B+
Retailer 4
-
$13,248 USD
View
B+
Retailer 5
-
$13,808 USD
View
Final sale: no returns
Retailer 6
-
$14,019 USD
View
Price last confirmed 15 days ago
B+
Retailer 7
-
$14,140 USD
View
B+
Retailer 8
-
$14,330 USD
View
B+
Retailer 9
-
$14,330 USD
View
Retailer 10
-
$14,409 USD
View
Price last confirmed 9 days ago
B+
Retailer 11
-
$14,810 USD
View
B+
Retailer 12
-
$15,370 USD
View
B+
Retailer 13
-
$15,610 USD
View
B+
Retailer 14
-
$16,001 USD
View
B+
Retailer 15
-
$16,211 USD
View
B+
Retailer 16
-
$16,414 USD
View
B
Retailer 17
-
$16,552 USD
View
B
Retailer 18
-
$16,937 USD
View
B
Retailer 19
-
$18,494 USD
View
B
Retailer 20
-
$19,046 USD
View
B
Retailer 21
-
$20,031 USD
View
Most Expensive
B
Diamond Quarter
1.51VS1F2573A3D8N · Nov 5
$24,941 USD
£19,638 GBP
View
21 more retailers have this diamond
Prices start from $12,593 USDSave up to $12,348 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.

B+
1.51ct Round
$12,593 USD