Radiant|Natural|GIA

1.51ct F SI2 Radiant Natural Diamond

GD • F/SI2 • GIA 6445035342

Certificate GIA 6445035342

Diamond specifications and retailer prices

From $2,675 USD
As of November 6, 2026
Save $3,311 USD (55%) vs most expensive(unlock to see where)
11 retailers carry this diamond
Most expensive: $5,986 USD at MOH London · As of November 4, 2026
View at MOH London

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 SI2 clarity (slightly-included), with a standard cut grade stated by the retailer rather than the lab and certified by GIA 6445035342. Listed at 11 retailers as of November 4, 2026, with prices from $2,675 to $5,986, a $3,311 spread on the same certified stone. MOH London lists it at $5,986. 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
Good
Cut (retailer stated)

Specifications

Cut (retailer stated)Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 6445035342
Dimensions6.28 × 6.01 × 4.21 mm
L/W Ratio1.04
Top View
6.28 mm6.01 mm1.51 ctF / SI2
OriginNatural
CutGood
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 6445035342
Side View
Table 65.0%CrownGirdle: STK-THKPavilionCulet: NoneDepth 70.0%

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: Nov 6
Current: $5,986 USD|Low: $2,649 USD|High: $6,364 USD|Avg: $3,898 USD|-5.9%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
November 7, 2026
Retailer 7$2,675 USD
Retailer 3$3,363 USD
Retailer 8$3,436 USD
Retailer 5$3,700 USD
Retailer 2$3,714 USD
Retailer 10$3,727 USD
Retailer 9$3,734 USD
Retailer 6$3,841 USD
Retailer 4$3,933 USD
MOH London$5,986 USD

37 data points across 10 retailers

11 retailers$2,675 USD to $5,986 USD

A
Cheapest Retailer
-
$2,675 USD
A
Retailer 2
-
$3,363 USD
View
Retailer 3
-
$3,436 USD
View
Price last confirmed 21 days ago
B+
Retailer 4
-
$3,567 USD
View
A
Retailer 5
-
$3,700 USD
View
A
Retailer 6
-
$3,714 USD
View
Retailer 7
-
$3,727 USD
View
Price last confirmed 19 days ago
B+
Retailer 8
-
$3,734 USD
View
A
Retailer 9
-
$3,841 USD
View
A
Retailer 10
-
$3,933 USD
View
Most Expensive
B+
MOH London
6B9FBA835 · Nov 4
$5,986 USD
£4,713 GBP
View
10 more retailers have this diamond
Prices start from $2,675 USDSave up to $3,311 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
$2,675 USD