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Round|Natural|GIA

1.51ct F VS1 Round Natural Diamond

ID • F/VS1 • GIA 148

Certificate GIA 148

Diamond specifications and retailer prices

From $12,375 SGD
$9,680 USD
As of November 1, 2026
Save $6,460 SGD (34%) vs most expensive(unlock to see where)
7 retailers carry this diamond
Most expensive: $18,835 SGD at Helzberg Diamonds · As of October 31, 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 F colour (colourless) and VS1 clarity (very-slightly-included), with a top-tier cut grade and certified by GIA. Listed at 7 retailers as of October 31, 2026, with prices from $12,375 to $18,835, a $6,460 spread on the same certified stone. Helzberg Diamonds lists it at $18,835. 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
Colour
VS1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceFaint
OriginNatural
Grading LabGIA
CertificateGIA 148
Dimensions7.31 × 7.35 × 4.56 mm
L/W Ratio1.01
Top View
7.31 mm7.35 mm1.51 ctF / VS1
OriginNatural
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceFaint
CertificateGIA 148
Side View
Table 58.0%CrownGirdle: MED-STKPavilionCulet: NoneDepth 62.1%

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: $18,835 SGD|Low: $12,375 SGD|High: $19,410 SGD|Avg: $14,564 SGD|-3.0%
Helzberg Diamonds
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
November 1, 2026
Retailer 5$12,375 SGD
Retailer 4$12,931 SGD
Retailer 6$13,004 SGD
Retailer 3$13,246 SGD
Retailer 8$13,879 SGD
Retailer 7$15,412 SGD
Retailer 2$16,019 SGD
Helzberg Diamonds$18,835 SGD

42 data points across 8 retailers

7 retailers$12,375 SGD to $18,835 SGD

A
Cheapest Retailer
-
$12,375 SGD
$9,680 USD
A
Retailer 2
-
$12,931 SGD
$10,115 USD
View
A
Retailer 3
-
$13,004 SGD
$10,172 USD
View
A
Retailer 4
-
$13,246 SGD
$10,361 USD
View
B+
Retailer 5
-
$15,412 SGD
$12,056 USD
View
B+
Retailer 6
-
$16,019 SGD
A$19,278 AUD
View
Most Expensive
B+
Helzberg Diamonds
XZRMIKJGLJPLH · Oct 31
$18,835 SGD
$14,733 USD
View
6 more retailers have this diamond
Prices start from $12,375 SGDSave up to $6,460 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.

A
1.51ct Round
$12,375 SGD