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Round|Natural|GIA

1.51ct F SI2 Round Natural Diamond

EX • F/SI2 • GIA 5231835612

Certificate GIA 5231835612

Diamond specifications and retailer prices

From $5,688 CAD
HK$31,800 HKD
As of November 1, 2026
Save $6,190 CAD (52%) vs most expensive(unlock to see where)
14 retailers carry this diamond
Most expensive: $12,035 CAD at Wholesale Diamonds Direct · As of October 23, 2026
View at Wholesale Diamonds Direct

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 5231835612. Listed at 14 retailers as of November 1, 2026, with a 109% 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
FluorescenceStrong
Crown angle35.5°
Pavilion angle40.8°
OriginNatural
Grading LabGIA
CertificateGIA 5231835612
Dimensions7.28 × 7.31 × 4.54 mm
L/W Ratio1.00
Top View
7.28 mm7.31 mm1.51 ctF / SI2
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceStrong
CertificateGIA 5231835612
Side View
Table 58.0%Crown 35.5°Girdle: Slightly ThickPavilion 40.8°Culet: NoneDepth 62.3%

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: $6,791 CAD|Low: $5,688 CAD|High: $12,464 CAD|Avg: $7,814 CAD|-2.4%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Wholesale Diamonds Direct
November 2, 2026
Retailer 9$5,688 CAD
Retailer 8$5,970 CAD
Retailer 6$6,319 CAD
Retailer 2$6,490 CAD
Retailer 1$6,791 CAD
Retailer 5$6,861 CAD
Retailer 7$7,325 CAD
Retailer 3$7,638 CAD
Retailer 4$8,023 CAD
Retailer 11$8,403 CAD
Retailer 10$11,878 CAD
Wholesale Diamonds Direct$12,035 CAD

27 data points across 12 retailers

14 retailers$5,688 CAD to $11,878 CAD

A
Cheapest Retailer
-
$5,688 CAD
HK$31,800 HKD
A
Retailer 2
-
$5,970 CAD
$4,272 USD
View
A
Retailer 3
-
$6,319 CAD
$4,522 USD
View
Final sale: no returns
A
Retailer 4
-
$6,490 CAD
$4,644 USD
View
A
Retailer 5
-
$6,791 CAD
$4,860 USD
View
A
Retailer 6
-
$6,861 CAD
$4,910 USD
View
A
Retailer 7
-
$7,325 CAD
£4,127 GBP
View
A
Retailer 8
-
$7,638 CAD
SGD 7,386 SGD
View
A
Retailer 9
-
$7,801 CAD
A$8,588 AUD
View
A
Retailer 10
-
$8,023 CAD
£4,521 GBP
View
A
Retailer 11
-
$8,403 CAD
€5,727 EUR
View
Retailer 12
-
$8,823 CAD
$6,314 USD
View
Price last confirmed 16 days ago
B+
Retailer 13
-
$11,878 CAD
£6,693 GBP
View
Most Expensive
Wholesale Diamonds Direct
425965143 · Oct 23
$12,035 CAD
$8,612 USD
View
Price last confirmed 10 days ago
13 more retailers have this diamond
Prices start from $5,688 CADSave up to $6,190 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
$5,688 CAD