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Radiant|Natural|GIA

1.51ct F SI1 Radiant Natural Diamond

EX • F/SI1 • GIA 7506516705

Certificate GIA 7506516705

Diamond specifications and retailer prices

From $5,835 USD
As of October 28, 2026
Save $3,666 USD (39%) vs most expensive(unlock to see where)
7 retailers carry this diamond
Most expensive: $9,501 USD at Cape Diamonds · As of October 31, 2026
View at Cape 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 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 7506516705. Listed at 7 retailers as of October 28, 2026, with prices from $5,835 to $9,501, a $3,666 spread on the same certified stone. Cape Diamonds lists it at $9,501. 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 7506516705
Dimensions7.19 × 5.71 × 3.88 mm
L/W Ratio1.26
Culet sizeNone
Top View
7.19 mm5.71 mm1.51 ctF / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 7506516705
Side View
Table 68.0%CrownGirdle: THK-VTKPavilionCulet: NoneDepth 67.9%

Caratlytics Score

How it works →
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 28
Current: $9,501 USD|Low: $5,608 USD|High: $9,501 USD|Avg: $6,886 USD|+3.1%
Cape Diamonds
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
November 2, 2026
Retailer 4$5,835 USD
Retailer 6$5,989 USD
Retailer 7$6,118 USD
Retailer 5$6,169 USD
Retailer 3$7,137 USD
Retailer 2$7,760 USD
Cape Diamonds$9,501 USD

40 data points across 7 retailers

7 retailers$5,835 USD to $9,501 USD

A
Cheapest Retailer
-
$5,835 USD
A
Retailer 2
-
$5,989 USD
View
A
Retailer 3
-
$6,007 USD
A$9,242 AUD
View
A
Retailer 4
-
$6,118 USD
View
B+
Retailer 5
-
$7,137 USD
View
B+
Retailer 6
-
$7,760 USD
£6,111 GBP
View
Most Expensive
B+
Cape Diamonds
cert_7506516705 · Oct 31
$9,501 USD
ZAR 153,488 ZAR
View
6 more retailers have this diamond
Prices start from $5,835 USDSave up to $3,666 USD

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 Radiant
$5,835 USD