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Round|Natural|GIA

1.51ct F SI2 Round Natural Diamond

EX • F/SI2 • GIA 1538258148

Certificate GIA 1538258148

Diamond specifications and retailer prices

From $6,332 CAD
HK$35,400 HKD
As of November 1, 2026
Save $7,049 CAD (53%) vs most expensive(unlock to see where)
21 retailers carry this diamond
Most expensive: $13,820 CAD at NZ Jewellers · As of October 17, 2026
View at NZ Jewellers

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 1538258148. Listed at 21 retailers as of October 28, 2026, with a 111% spread between the cheapest and most expensive listing. That is exactly the kind of price-discovery gap Carat Hunter was built to surface. 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
Color
SI2
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceFaint
Crown angle35°
Pavilion angle41.6°
OriginNatural
Grading LabGIA
CertificateGIA 1538258148
Dimensions7.35 × 7.29 × 4.59 mm
L/W Ratio1.01
Star length50%
Lower girdle80%
Girdle conditionFaceted
Culet sizeNone
Key to symbols
Cloud, Crystal, Feather, Needle
Top View
7.35 mm7.29 mm1.51 ctF / SI2
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceFaint
CertificateGIA 1538258148
Side View
Table 58.0%Crown 35°Girdle: MED-STKPavilion 41.6°Culet: NoneDepth 62.7%

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: Nov 1
Current: $6,729 CAD|Low: $6,278 CAD|High: $13,434 CAD|Avg: $8,880 CAD|-0.1%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
Retailer 13
November 2, 2026
Retailer 10$6,332 CAD
Retailer 1$6,729 CAD
Retailer 13$7,215 CAD
Retailer 2$7,258 CAD
Retailer 11$7,413 CAD
Retailer 5$7,627 CAD
Retailer 7$8,007 CAD
Retailer 3$8,147 CAD
Retailer 4$8,480 CAD
Retailer 6$8,772 CAD
Retailer 8$8,988 CAD
Retailer 9$12,173 CAD
Retailer 12$13,381 CAD

30 data points across 13 retailers

21 retailers$6,332 CAD to $13,381 CAD

A
Cheapest Retailer
-
$6,332 CAD
HK$35,400 HKD
A
Retailer 2
-
$6,729 CAD
₹458,610 INR
View
A
Retailer 3
-
$7,215 CAD
SGD 6,977 SGD
View
A
Retailer 4
-
$7,258 CAD
$5,194 USD
View
A
Retailer 5
-
$7,413 CAD
$5,305 USD
View
Retailer 6
-
$7,486 CAD
$5,357 USD
View
Price last confirmed 17 days ago
Retailer 7
-
$7,486 CAD
$5,357 USD
View
Price last confirmed 34 days ago
Retailer 8
-
$7,486 CAD
$5,357 USD
View
Price last confirmed 33 days ago
A
Retailer 9
-
$7,627 CAD
$5,458 USD
View
Final sale: no returns
A
Retailer 10
-
$7,698 CAD
$5,509 USD
View
A
Retailer 11
-
$8,007 CAD
£4,512 GBP
View
A
Retailer 12
-
$8,147 CAD
$5,830 USD
View
A
Retailer 13
-
$8,480 CAD
$6,069 USD
View
Retailer 14
-
$8,637 CAD
$6,181 USD
View
Price last confirmed 33 days ago
A
Retailer 15
-
$8,772 CAD
£4,943 GBP
View
A
Retailer 16
-
$8,988 CAD
€6,126 EUR
View
Retailer 17
-
$9,112 CAD
$6,521 USD
View
Price last confirmed 10 days ago
B+
Retailer 18
-
$12,173 CAD
£6,859 GBP
View
B+
Retailer 19
-
$13,381 CAD
£7,540 GBP
View
Retailer 20
-
$13,820 CAD
$9,890 USD
View
Price last confirmed 35 days ago
Most Expensive
NZ Jewellers
f4f1a7a0-c163-4cbe-a534-8e0fa0e569e3 · Oct 17
$13,820 CAD
$9,890 USD
View
Price last confirmed 16 days ago
20 more retailers have this diamond
Prices start from $6,332 CADSave up to $7,049 CAD

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
$6,332 CAD