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Round|Natural|IGI

1.51ct F SI2 Round Natural Diamond

VG • F/SI2 • IGI 487189405

Shape and cutting style on the report: Round brilliant

Certificate IGI 487189405

Diamond specifications and retailer prices

From €6,166 EUR
₹658,629 INR
As of November 2, 2026
Save €7,542 EUR (55%) vs most expensive(unlock to see where)
20 retailers carry this diamond
Most expensive: €13,708 EUR at Diamond Quarter · As of November 2, 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 F colour (colourless) and SI2 clarity (slightly-included), with a very-good cut grade and certified by IGI 487189405. Listed at 20 retailers as of November 2, 2026, with prices from €6,166 to €13,708, a €7,542 spread on the same certified stone. Diamond Quarter lists it at €13,708. 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
F
Color
SI2
Clarity
Very Good
Cut

Specifications

CutVery Good
PolishExcellent
SymmetryVery Good
FluorescenceFaint
Crown angle36.5°
Pavilion angle41.6°
OriginNatural
Grading LabIGI
CertificateIGI 487189405
Dimensions7.24 × 7.17 × 4.61 mm
L/W Ratio1.01
Girdle conditionFaceted
Culet sizePointed
Top View
7.24 mm7.17 mm1.51 ctF / SI2
OriginNatural
CutVery Good
PolishExcellent
SymmetryVery Good
FluorescenceFaint
CertificateIGI 487189405
Side View
Table 59.5%Crown 36.5°Girdle: MED-STKPavilion 41.6°Culet: NoneDepth 63.9%

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: Nov 2
Current: €6,166 EUR|Low: €6,153 EUR|High: €13,608 EUR|Avg: €8,604 EUR|-0.9%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
November 2, 2026
Retailer 1€6,166 EUR
Retailer 7€6,905 EUR
Retailer 12€6,942 EUR
Retailer 9€7,510 EUR
Retailer 11€7,511 EUR
Retailer 2€8,137 EUR
Retailer 10€8,261 EUR
Retailer 8€8,410 EUR
Retailer 5€8,638 EUR
Retailer 4€9,388 EUR
Retailer 6€11,340 EUR
Retailer 3€13,608 EUR

46 data points across 12 retailers

20 retailers€6,166 EUR to €13,708 EUR

B+
Cheapest Retailer
-
€6,166 EUR
₹658,629 INR
B+
Retailer 2
-
€6,905 EUR
$7,745 USD
View
B+
Retailer 3
-
€6,942 EUR
$7,786 USD
View
B+
Retailer 4
-
€7,033 EUR
$7,888 USD
View
B
Retailer 5
-
€7,510 EUR
$8,423 USD
View
Final sale: no returns
Retailer 6
-
€7,511 EUR
$8,424 USD
View
Price last confirmed 9 days ago
Retailer 7
-
€8,137 EUR
$9,126 USD
View
Price last confirmed 11 days ago
Retailer 8
-
€8,137 EUR
$9,126 USD
View
Price last confirmed 46 days ago
Retailer 9
-
€8,137 EUR
$9,126 USD
View
Price last confirmed 47 days ago
Retailer 10
-
€8,261 EUR
$9,266 USD
View
Price last confirmed 11 days ago
B
Retailer 11
-
€8,316 EUR
$9,327 USD
View
B
Retailer 12
-
€8,638 EUR
£7,629 GBP
View
Retailer 13
-
€9,388 EUR
$10,530 USD
View
Price last confirmed 43 days ago
Retailer 14
-
€9,388 EUR
$10,530 USD
View
Price last confirmed 10 days ago
Retailer 15
-
€9,388 EUR
$10,530 USD
View
Price last confirmed 49 days ago
B
Retailer 16
-
€11,340 EUR
£10,015 GBP
View
Retailer 17
-
€13,608 EUR
$15,263 USD
View
Price last confirmed 42 days ago
Retailer 18
-
€13,608 EUR
$15,263 USD
View
Price last confirmed 10 days ago
Retailer 19
-
€13,608 EUR
$15,263 USD
View
Price last confirmed 49 days ago
Most Expensive
C
Diamond Quarter
1.51SI2F480558E2N · Nov 2
€13,708 EUR
£12,106 GBP
View
19 more retailers have this diamond
Prices start from €6,166 EURSave up to €7,542 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
€6,166 EUR