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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 €7,210 EUR
$8,055 USD
As of October 25, 2026
Save €8,230 EUR (53%) vs most expensive(unlock to see where)
15 retailers carry this diamond
Most expensive: €15,440 EUR at Diamond Quarter · As of October 31, 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 €7,210 to €15,440, a €8,230 spread on the same certified stone. Diamond Quarter lists it at €15,440. 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
Colour
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: €8,888 EUR|Low: €7,120 EUR|High: €10,115 EUR|Avg: €8,657 EUR|-0.0%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
November 1, 2026
Retailer 9€7,120 EUR
Retailer 5€7,210 EUR
Retailer 7€7,501 EUR
Retailer 3€8,305 EUR
Retailer 8€8,497 EUR
Retailer 6€8,683 EUR
Retailer 1€8,888 EUR
Retailer 2€9,533 EUR
Retailer 11€9,533 EUR
Retailer 10€9,855 EUR
Retailer 4€10,115 EUR

39 data points across 11 retailers

15 retailers€7,210 EUR to €15,440 EUR

B+
Cheapest Retailer
-
€7,210 EUR
$8,055 USD
B+
Retailer 2
-
€7,501 EUR
$8,380 USD
View
B+
Retailer 3
-
€7,648 EUR
$8,544 USD
View
B+
Retailer 4
-
€7,692 EUR
$8,594 USD
View
B+
Retailer 5
-
€8,126 EUR
CA$12,608 CAD
View
B+
Retailer 6
-
€8,305 EUR
$9,279 USD
View
B+
Retailer 7
-
€8,497 EUR
$9,493 USD
View
B+
Retailer 8
-
€8,683 EUR
SGD 13,109 SGD
View
B+
Retailer 9
-
€8,888 EUR
£7,819 GBP
View
B
Retailer 10
-
€9,533 EUR
$10,650 USD
View
B
Retailer 11
-
€9,533 EUR
$10,650 USD
View
B
Retailer 12
-
€9,740 EUR
$10,882 USD
View
B
Retailer 13
-
€9,855 EUR
$11,010 USD
View
B
Retailer 14
-
€10,115 EUR
View
Most Expensive
B
Diamond Quarter
1.51SI2D6359E8AAN · Oct 31
€15,440 EUR
£13,583 GBP
View
14 more retailers have this diamond
Prices start from €7,210 EURSave up to €8,230 EUR

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
€7,210 EUR