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1.51ct D SI2 Round Natural Diamond

VG • D/SI2 • GIA 6312930159

Shape and cutting style on the report: Round brilliant

Certificate GIA 6312930159

Diamond specifications and retailer prices

From $11,252 CAD
$8,055 USD
As of October 25, 2026
Save $12,844 CAD (53%) vs most expensive(unlock to see where)
15 retailers carry this diamond
Most expensive: $24,096 CAD at Diamond Quarter · As of October 29, 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 D colour (colourless) and SI2 clarity (slightly-included), with a very-good cut grade and certified by GIA 6312930159. Listed at 15 retailers as of October 25, 2026, with prices from $11,252 to $24,096, a $12,844 spread on the same certified stone. Diamond Quarter lists it at $24,096. 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
D
Color
SI2
Clarity
Very Good
Cut

Specifications

CutVery Good
PolishExcellent
SymmetryVery Good
FluorescenceNone
Crown angle37.5°
Pavilion angle40.6°
OriginNatural
Grading LabGIA
CertificateGIA 6312930159
Dimensions7.25 × 7.13 × 4.54 mm
L/W Ratio1.02
Star length50%
Lower girdle80%
Top View
7.25 mm7.13 mm1.51 ctD / SI2
OriginNatural
CutVery Good
PolishExcellent
SymmetryVery Good
FluorescenceNone
CertificateGIA 6312930159
Side View
Table 58.0%Crown 37.5°Girdle: STK-THKPavilion 40.6°Culet: NoneDepth 63.7%

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: Oct 25
Current: $13,870 CAD|Low: $11,112 CAD|High: $15,760 CAD|Avg: $13,508 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
October 30, 2026
Retailer 9$11,112 CAD
Retailer 5$11,252 CAD
Retailer 7$11,706 CAD
Retailer 3$12,962 CAD
Retailer 8$13,261 CAD
Retailer 6$13,551 CAD
Retailer 1$13,870 CAD
Retailer 2$14,877 CAD
Retailer 11$14,877 CAD
Retailer 10$15,380 CAD
Retailer 4$15,760 CAD

38 data points across 11 retailers

15 retailers$11,252 CAD to $24,096 CAD

B+
Cheapest Retailer
-
$11,252 CAD
$8,055 USD
B+
Retailer 2
-
$11,706 CAD
$8,380 USD
View
B+
Retailer 3
-
$11,935 CAD
$8,544 USD
View
B+
Retailer 4
-
$12,005 CAD
$8,594 USD
View
B+
Retailer 5
-
$12,681 CAD
View
B+
Retailer 6
-
$12,962 CAD
$9,279 USD
View
B+
Retailer 7
-
$13,261 CAD
$9,493 USD
View
B+
Retailer 8
-
$13,551 CAD
SGD 13,109 SGD
View
B+
Retailer 9
-
$13,870 CAD
£7,818 GBP
View
B
Retailer 10
-
$14,877 CAD
$10,650 USD
View
B
Retailer 11
-
$14,877 CAD
$10,650 USD
View
B
Retailer 12
-
$15,201 CAD
$10,882 USD
View
B
Retailer 13
-
$15,380 CAD
$11,010 USD
View
B
Retailer 14
-
$15,760 CAD
€10,745 EUR
View
Most Expensive
B
Diamond Quarter
1.51SI2D6359E8AAN · Oct 29
$24,096 CAD
£13,583 GBP
View
14 more retailers have this diamond
Prices start from $11,252 CADSave up to $12,844 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.

B+
1.51ct Round
$11,252 CAD