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Round|Natural|GIA

1.51ct F SI2 Round Natural Diamond

EX • F/SI2 • GIA 2554355031

Certificate GIA 2554355031

Diamond specifications and retailer prices

From $2,608 SGD
$2,039 USD
As of October 31, 2026
Save $8,980 SGD (77%) vs most expensive(unlock to see where)
7 retailers carry this diamond
Most expensive: $11,589 SGD at MOH London · As of November 1, 2026
View at MOH London

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 top-tier cut grade and certified by GIA 2554355031. Listed at 7 retailers as of October 31, 2026, with prices from $2,608 to $11,589, a $8,980 spread on the same certified stone. MOH London lists it at $11,589. SI-grade stones are eye-clean roughly 60 to 70% of the time at this carat range. Check the inclusion plot on the cert and ask the retailer for high-resolution video before buying.

The 4Cs

1.51
Carat
F
Colour
SI2
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceFaint
Crown angle34.5°
Pavilion angle41.4°
OriginNatural
Grading LabGIA
CertificateGIA 2554355031
Dimensions7.33 × 7.37 × 4.54 mm
L/W Ratio1.01
Girdle conditionSlightly Thick
Key to symbols
Crystal, Feather, Needle
Top View
7.33 mm7.37 mm1.51 ctF / SI2
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceFaint
CertificateGIA 2554355031
Side View
Table 59.0%Crown 34.5°Girdle: MED-STKPavilion 41.4°Culet: NoneDepth 61.9%

Caratlytics Score

How it works →
A
Excellent
Excellent quality and great value
Unlock full score analysis
See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Oct 31
Current: $11,589 SGD|Low: $2,608 SGD|High: $12,006 SGD|Avg: $7,877 SGD|-2.4%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
November 2, 2026
Retailer 7$2,608 SGD
Retailer 4$7,032 SGD
Retailer 2$7,867 SGD
Retailer 5$7,867 SGD
Retailer 3$8,351 SGD
Retailer 6$8,891 SGD
MOH London$11,589 SGD

41 data points across 7 retailers

7 retailers$2,608 SGD to $11,589 SGD

A
Cheapest Retailer
-
$2,608 SGD
$2,039 USD
A
Retailer 2
-
$7,032 SGD
£4,329 GBP
View
A
Retailer 3
-
$7,867 SGD
$6,151 USD
View
A
Retailer 4
-
$7,867 SGD
$6,151 USD
View
A
Retailer 5
-
$8,351 SGD
£5,142 GBP
View
B+
Retailer 6
-
$8,891 SGD
$6,952 USD
View
Most Expensive
B
MOH London
4B920FA24 · Nov 1
$11,589 SGD
£7,135 GBP
View
6 more retailers have this diamond
Prices start from $2,608 SGDSave up to $8,980 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
$2,608 SGD