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Round|Natural|GIA

1.51ct H VS1 Round Natural Diamond

EX • H/VS1 • GIA 2125555197

Certificate GIA 2125555197

Diamond specifications and retailer prices

From $17,078 SGD
As of November 4, 2026
Save $10,756 SGD (39%) vs most expensive(unlock to see where)
24 retailers carry this diamond
Most expensive: $34,602 SGD 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
Colour
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: $20,345 SGD|Low: $17,078 SGD|High: $31,054 SGD|Avg: $22,117 SGD|-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$17,078 SGD
Retailer 9$17,108 SGD
Retailer 7$18,829 SGD
Retailer 1$20,345 SGD
Retailer 6$20,630 SGD
Retailer 8$20,957 SGD
Retailer 2$22,797 SGD
Retailer 5$28,864 SGD
Retailer 3$30,602 SGD

44 data points across 9 retailers

24 retailers$17,078 SGD to $27,834 SGD

B+
Cheapest Retailer
-
$17,078 SGD
B
Retailer 2
-
$17,108 SGD
View
B
Retailer 3
-
$17,978 SGD
View
B
Retailer 4
-
$18,064 SGD
View
B
Retailer 5
-
$18,407 SGD
View
B
Retailer 6
-
$18,417 SGD
View
B
Retailer 7
-
$18,829 SGD
View
Final sale: no returns
B
Retailer 8
-
$19,255 SGD
View
Retailer 9
-
$19,647 SGD
View
Price last confirmed 8 days ago
B
Retailer 10
-
$20,345 SGD
View
Retailer 11
-
$20,630 SGD
View
Price last confirmed 14 days ago
B
Retailer 12
-
$20,957 SGD
View
B
Retailer 13
-
$21,285 SGD
View
B
Retailer 14
-
$22,097 SGD
View
B
Retailer 15
-
$22,097 SGD
View
B
Retailer 16
-
$22,104 SGD
View
B
Retailer 17
-
$22,797 SGD
View
B
Retailer 18
-
$22,825 SGD
View
B
Retailer 19
-
$22,827 SGD
View
B
Retailer 20
-
$22,967 SGD
View
B
Retailer 21
-
$27,834 SGD
View
Retailer 22
-
$28,864 SGD
View
Price under review
Retailer 23
-
$30,602 SGD
View
Price under review
Most Expensive
Diamond Quarter
1.51VS1H2197EFBEN · Nov 5
$34,602 SGD
£21,331 GBP
View
Price under review
23 more retailers have this diamond
Prices start from $17,078 SGDSave up to $10,756 SGD

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
$17,078 SGD