Round|Natural|GIA

1.51ct H VS1 Round Natural Diamond

EX • H/VS1 • GIA 2125555197

Certificate GIA 2125555197

Diamond specifications and retailer prices

From $13,370 USD
As of November 4, 2026
Save $8,421 USD (39%) vs most expensive(unlock to see where)
24 retailers carry this diamond
Most expensive: $27,090 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 H colour (near-colourless) and VS1 clarity (very-slightly-included), with a top-tier cut grade and certified by GIA 2125555197. Listed at 24 retailers as of November 4, 2026, with a 63% 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
H
Color
VS1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryVery Good
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 2125555197
Dimensions7.41 × 7.33 × 4.53 mm
L/W Ratio1.01
Culet sizeNone
Top View
7.41 mm7.33 mm1.51 ctH / VS1
OriginNatural
CutExcellent
PolishExcellent
SymmetryVery Good
FluorescenceNone
CertificateGIA 2125555197
Side View
Table 57.0%CrownGirdle: MED-STKPavilionCulet: NoneDepth 61.4%

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 4
Current: $15,928 USD|Low: $13,370 USD|High: $24,312 USD|Avg: $17,315 USD|-2.7%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
November 6, 2026
Retailer 4$13,370 USD
Retailer 9$13,394 USD
Retailer 7$14,741 USD
Retailer 1$15,928 USD
Retailer 6$16,151 USD
Retailer 8$16,407 USD
Retailer 2$17,848 USD
Retailer 5$22,598 USD
Retailer 3$23,958 USD

44 data points across 9 retailers

24 retailers$13,370 USD to $21,791 USD

B+
Cheapest Retailer
-
$13,370 USD
B
Retailer 2
-
$13,394 USD
View
B
Retailer 3
-
$14,075 USD
View
B
Retailer 4
-
$14,142 USD
View
B
Retailer 5
-
$14,411 USD
View
B
Retailer 6
-
$14,419 USD
View
B
Retailer 7
-
$14,741 USD
View
Final sale: no returns
B
Retailer 8
-
$15,075 USD
View
Retailer 9
-
$15,382 USD
View
Price last confirmed 8 days ago
B
Retailer 10
-
$15,928 USD
View
Retailer 11
-
$16,151 USD
View
Price last confirmed 14 days ago
B
Retailer 12
-
$16,407 USD
View
B
Retailer 13
-
$16,664 USD
View
B
Retailer 14
-
$17,300 USD
View
B
Retailer 15
-
$17,300 USD
View
B
Retailer 16
-
$17,305 USD
View
B
Retailer 17
-
$17,848 USD
View
B
Retailer 18
-
$17,870 USD
View
B
Retailer 19
-
$17,871 USD
View
B
Retailer 20
-
$17,981 USD
View
B
Retailer 21
-
$21,791 USD
View
Retailer 22
-
$22,598 USD
View
Price under review
Retailer 23
-
$23,958 USD
View
Price under review
Most Expensive
Diamond Quarter
1.51VS1H2197EFBEN · Nov 5
$27,090 USD
£21,331 GBP
View
Price under review
23 more retailers have this diamond
Prices start from $13,370 USDSave up to $8,421 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
$13,370 USD