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1.51ct F SI2 Round Natural Diamond

VG • F/SI2 • IGI 487189405

Shape and cutting style on the report: Round brilliant

Certificate IGI 487189405

Diamond specifications and retailer prices

From $8,844 SGD
₹658,629 INR
As of November 2, 2026
Save $10,818 SGD (55%) vs most expensive(unlock to see where)
20 retailers carry this diamond
Most expensive: $19,662 SGD at Diamond Quarter · As of November 2, 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 SI2 clarity (slightly-included), with a very-good cut grade and certified by IGI 487189405. Listed at 20 retailers as of November 2, 2026, with prices from $8,844 to $19,662, a $10,818 spread on the same certified stone. Diamond Quarter lists it at $19,662. Cut grade matters more than carat or clarity for visible brilliance. If you can shift budget toward an Excellent or Ideal cut, do it before chasing higher colour or clarity.

The 4Cs

1.51
Carat
F
Colour
SI2
Clarity
Very Good
Cut

Specifications

CutVery Good
PolishExcellent
SymmetryVery Good
FluorescenceFaint
Crown angle36.5°
Pavilion angle41.6°
OriginNatural
Grading LabIGI
CertificateIGI 487189405
Dimensions7.24 × 7.17 × 4.61 mm
L/W Ratio1.01
Girdle conditionFaceted
Culet sizePointed
Top View
7.24 mm7.17 mm1.51 ctF / SI2
OriginNatural
CutVery Good
PolishExcellent
SymmetryVery Good
FluorescenceFaint
CertificateIGI 487189405
Side View
Table 59.5%Crown 36.5°Girdle: MED-STKPavilion 41.6°Culet: NoneDepth 63.9%

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 2
Current: $8,844 SGD|Low: $8,827 SGD|High: $19,520 SGD|Avg: $12,357 SGD|-1.1%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
November 2, 2026
Retailer 1$8,844 SGD
Retailer 7$9,905 SGD
Retailer 12$9,958 SGD
Retailer 9$10,772 SGD
Retailer 11$10,773 SGD
Retailer 2$11,671 SGD
Retailer 10$11,850 SGD
Retailer 8$12,063 SGD
Retailer 5$12,391 SGD
Retailer 4$13,467 SGD
Retailer 6$16,266 SGD
Retailer 3$19,520 SGD

45 data points across 12 retailers

20 retailers$8,844 SGD to $19,662 SGD

B+
Cheapest Retailer
-
$8,844 SGD
₹658,629 INR
B+
Retailer 2
-
$9,905 SGD
$7,745 USD
View
B+
Retailer 3
-
$9,958 SGD
$7,786 USD
View
B+
Retailer 4
-
$10,088 SGD
$7,888 USD
View
B
Retailer 5
-
$10,772 SGD
$8,423 USD
View
Final sale: no returns
Retailer 6
-
$10,773 SGD
$8,424 USD
View
Price last confirmed 10 days ago
Retailer 7
-
$11,671 SGD
$9,126 USD
View
Price last confirmed 11 days ago
Retailer 8
-
$11,671 SGD
$9,126 USD
View
Price last confirmed 46 days ago
Retailer 9
-
$11,671 SGD
$9,126 USD
View
Price last confirmed 47 days ago
Retailer 10
-
$11,850 SGD
$9,266 USD
View
Price last confirmed 11 days ago
B
Retailer 11
-
$11,928 SGD
$9,327 USD
View
B
Retailer 12
-
$12,391 SGD
£7,629 GBP
View
Retailer 13
-
$13,467 SGD
$10,530 USD
View
Price last confirmed 44 days ago
Retailer 14
-
$13,467 SGD
$10,530 USD
View
Price last confirmed 10 days ago
Retailer 15
-
$13,467 SGD
$10,530 USD
View
Price last confirmed 49 days ago
B
Retailer 16
-
$16,266 SGD
£10,015 GBP
View
Retailer 17
-
$19,520 SGD
$15,263 USD
View
Price last confirmed 42 days ago
Retailer 18
-
$19,520 SGD
$15,263 USD
View
Price last confirmed 10 days ago
Retailer 19
-
$19,520 SGD
$15,263 USD
View
Price last confirmed 49 days ago
Most Expensive
C
Diamond Quarter
1.51SI2F480558E2N · Nov 2
$19,662 SGD
£12,106 GBP
View
19 more retailers have this diamond
Prices start from $8,844 SGDSave up to $10,818 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
$8,844 SGD