Round|Natural|GIA

1.51ct D SI1 Round Natural Diamond

EX • D/SI1 • GIA 3415658160

Certificate GIA 3415658160

Diamond specifications and retailer prices

From €6,901 EUR
$7,710 USD
As of October 31, 2026
Save €11,382 EUR (62%) vs most expensive(unlock to see where)
27 retailers carry this diamond
Most expensive: €18,283 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 SI1 clarity (slightly-included), with a top-tier cut grade and certified by GIA 3415658160. Listed at 27 retailers as of October 31, 2026, with prices from €6,901 to €18,283, a €11,382 spread on the same certified stone. Diamond Quarter lists it at €18,283. 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
D
Color
SI1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle33.5°
Pavilion angle41.4°
OriginNatural
Grading LabGIA
CertificateGIA 3415658160
Dimensions7.34 × 7.30 × 4.59 mm
L/W Ratio1.01
Top View
7.34 mm7.30 mm1.51 ctD / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 3415658160
Side View
Table 55.0%Crown 33.5°Girdle: ThickPavilion 41.4°Culet: NoneDepth 62.7%

Caratlytics Score

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A
Excellent
Excellent quality and great value
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See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Oct 31
Current: €11,939 EUR|Low: €6,901 EUR|High: €13,938 EUR|Avg: €9,639 EUR|-13.4%
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
Retailer 14
Retailer 15
Retailer 16
Retailer 17
Retailer 18
Retailer 19
Retailer 20
Retailer 21
November 1, 2026
Retailer 6€6,901 EUR
Retailer 8€6,938 EUR
Retailer 4€7,157 EUR
Retailer 20€7,279 EUR
Retailer 9€7,370 EUR
Retailer 18€7,595 EUR
Retailer 7€7,644 EUR
Retailer 5€8,149 EUR
Retailer 12€8,297 EUR
Retailer 17€8,493 EUR
Retailer 21€8,556 EUR
Retailer 2€8,870 EUR
Retailer 10€8,870 EUR
Retailer 3€9,166 EUR
Retailer 19€9,275 EUR
Retailer 16€9,530 EUR
Retailer 13€9,700 EUR
Retailer 11€9,800 EUR
Retailer 14€11,022 EUR
Retailer 15€11,230 EUR
Retailer 1€11,939 EUR

42 data points across 21 retailers

27 retailers€6,901 EUR to €18,283 EUR

A
Cheapest Retailer
-
€6,901 EUR
$7,710 USD
A
Retailer 2
-
€6,938 EUR
$7,751 USD
View
A
Retailer 3
-
€7,157 EUR
$7,996 USD
View
A
Retailer 4
-
€7,279 EUR
$8,132 USD
View
A
Retailer 5
-
€7,370 EUR
$8,234 USD
View
A
Retailer 6
-
€7,595 EUR
$8,485 USD
View
B+
Retailer 7
-
€7,644 EUR
$8,540 USD
View
Final sale: no returns
B+
Retailer 8
-
€8,149 EUR
$9,104 USD
View
B+
Retailer 9
-
€8,297 EUR
£7,299 GBP
View
B+
Retailer 10
-
€8,493 EUR
$9,488 USD
View
B+
Retailer 11
-
€8,556 EUR
$9,558 USD
View
Retailer 12
-
€8,818 EUR
$9,851 USD
View
Price last confirmed 16 days ago
B+
Retailer 13
-
€8,870 EUR
$9,910 USD
View
B+
Retailer 14
-
€8,870 EUR
$9,910 USD
View
B+
Retailer 15
-
€9,166 EUR
$10,240 USD
View
B+
Retailer 16
-
€9,275 EUR
$10,362 USD
View
B+
Retailer 17
-
€9,530 EUR
View
Retailer 18
-
€9,552 EUR
$10,672 USD
View
Price last confirmed 10 days ago
Retailer 19
-
€9,700 EUR
$10,837 USD
View
Price last confirmed 10 days ago
Retailer 20
-
€9,800 EUR
A$16,844 AUD
View
Price last confirmed 28 days ago
Retailer 21
-
€9,825 EUR
$10,976 USD
View
Price last confirmed 17 days ago
Retailer 22
-
€11,022 EUR
$12,314 USD
View
Price last confirmed 11 days ago
B+
Retailer 23
-
€11,230 EUR
ZAR 202,693 ZAR
View
B
Retailer 24
-
€11,939 EUR
£10,503 GBP
View
Retailer 25
-
€14,696 EUR
$16,419 USD
View
Price last confirmed 11 days ago
B
Retailer 26
-
€17,441 EUR
£15,343 GBP
View
Most Expensive
B
Diamond Quarter
1.51SI1D34607BA3N · Oct 31
€18,283 EUR
£16,083 GBP
View
26 more retailers have this diamond
Prices start from €6,901 EURSave up to €11,382 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.

A
1.51ct Round
€6,901 EUR