Radiant|Natural|GIA

1.51ct F SI1 Radiant Natural Diamond

EX • F/SI1 • GIA 5182557110

Certificate GIA 5182557110

Diamond specifications and retailer prices

From €6,392 EUR
$7,169 USD
As of November 2, 2026
Save €2,586 EUR (29%) vs most expensive(unlock to see where)
8 retailers carry this diamond
Most expensive: €8,978 EUR at Jared · As of November 2, 2026
View at Jared

About this 1.51ct natural radiant diamond

This 1.51ct natural radiant sits in the one-and-a-half to two carat band, graded F colour (colourless) and SI1 clarity (slightly-included), with a top-tier cut grade stated by the retailer rather than the lab and certified by GIA 5182557110. Listed at 8 retailers as of November 2, 2026, with prices from €6,392 to €8,978, a €2,586 spread on the same certified stone. Jared lists it at €8,978. 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
SI1
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 5182557110
Dimensions6.91 × 6.42 × 4.06 mm
L/W Ratio1.08
Top View
6.91 mm6.42 mm1.51 ctF / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 5182557110
Side View
Table 70.0%CrownGirdle: MED-VTKPavilionCulet: NoneDepth 63.3%

Caratlytics Score

How it works →
B+
Very Good
Strong quality and value balance
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See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 2
Current: €8,629 EUR|Low: €6,328 EUR|High: €8,758 EUR|Avg: €7,753 EUR|-0.4%
Retailer 1
Retailer 2
Retailer 3
October 31, 2026
Retailer 2€6,392 EUR
Retailer 3€8,185 EUR
Retailer 1€8,629 EUR

32 data points across 3 retailers

8 retailers€6,392 EUR to €8,978 EUR

B+
Cheapest Retailer
-
€6,392 EUR
$7,169 USD
B+
Retailer 2
-
€6,854 EUR
A$11,826 AUD
View
B+
Retailer 3
-
€7,066 EUR
$7,926 USD
View
B+
Retailer 4
-
€8,185 EUR
$9,180 USD
View
B+
Retailer 5
-
€8,629 EUR
£7,621 GBP
View
B
Retailer 6
-
€8,693 EUR
$9,750 USD
View
B
Retailer 7
-
€8,693 EUR
$9,750 USD
View
Most Expensive
B
Jared
130463369 · Nov 2
€8,978 EUR
$10,070 USD
View
7 more retailers have this diamond
Prices start from €6,392 EURSave up to €2,586 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 Radiant
€6,392 EUR