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Radiant|Natural|GIA

1.51ct E SI1 Radiant Natural Diamond

EX • E/SI1 • GIA 2377479568

Certificate GIA 2377479568

Diamond specifications and retailer prices

From €9,966 EUR
$11,134 USD
As of October 30, 2026
Save €3,336 EUR (25%) vs most expensive(unlock to see where)
4 retailers carry this diamond
Most expensive: €13,302 EUR at 77 Diamonds · As of October 30, 2026
View at 77 Diamonds

About this 1.51ct natural radiant diamond

This 1.51ct natural radiant sits in the one-and-a-half to two carat band, graded E 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 2377479568. Listed at 4 retailers as of October 30, 2026, with prices from €9,966 to €13,302, a €3,336 spread on the same certified stone. 77 Diamonds lists it at €13,302. 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
E
Colour
SI1
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 2377479568
Dimensions7.38 × 5.60 × 3.86 mm
L/W Ratio1.32
Top View
7.38 mm5.60 mm1.51 ctE / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 2377479568
Side View
Table 65.0%CrownGirdle: STK-THKPavilionCulet: NoneDepth 68.9%

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: Oct 30
Current: €13,302 EUR|Low: €9,875 EUR|High: €13,369 EUR|Avg: €11,599 EUR|+1.8%
77 Diamonds
Retailer 2
October 30, 2026
Retailer 2€9,966 EUR
77 Diamonds€13,302 EUR

28 data points across 2 retailers

4 retailers€9,966 EUR to €13,302 EUR

B+
Cheapest Retailer
-
€9,966 EUR
$11,134 USD
B
Retailer 2
-
€10,609 EUR
$11,852 USD
View
B
Retailer 3
-
€10,870 EUR
A$18,684 AUD
View
Most Expensive
B
77 Diamonds
RADZVYRPAAA7 · Oct 30
€13,302 EUR
£11,702 GBP
View
3 more retailers have this diamond
Prices start from €9,966 EURSave up to €3,336 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
€9,966 EUR