Radiant|Natural|GIA

1.51ct I SI2 Radiant Natural Diamond

GD • I/SI2 • GIA 6525240450

Certificate GIA 6525240450

Diamond specifications and retailer prices

From $2,790 USD
Save $3,748 USD (57%) vs most expensive(unlock to see where)
9 retailers carry this diamond
Most expensive: $6,538 USD at MOH London
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 I colour (near-colourless) and SI2 clarity (slightly-included), with a standard cut grade stated by the retailer rather than the lab and certified by GIA 6525240450. Listed at 9 retailers, with prices from $2,790 to $6,538 at MOH London, a $3,748 spread on the same certified stone. 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
I
Color
SI2
Clarity
Good
Cut (retailer stated)

Specifications

Cut (retailer stated)Good
PolishExcellent
SymmetryExcellent
FluorescenceStrong
OriginNatural
Grading LabGIA
CertificateGIA 6525240450
Dimensions7.34 × 5.63 × 4.06 mm
L/W Ratio1.30
Top View
7.34 mm5.63 mm1.51 ctI / SI2
OriginNatural
CutGood
PolishExcellent
SymmetryExcellent
FluorescenceStrong
CertificateGIA 6525240450
Side View
Table 67.0%CrownGirdle: VTK-ETKPavilionCulet: NoneDepth 72.1%

Caratlytics Score

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

Price History

Last verified: Oct 1
Current: $6,538 USD|Low: $2,790 USD|High: $6,538 USD|Avg: $3,826 USD|+1.1%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
October 1, 2026
Retailer 5$2,790 USD
Retailer 4$3,045 USD
Retailer 9$3,107 USD
Retailer 10$3,147 USD
Retailer 6$3,836 USD
Retailer 3$3,917 USD
Retailer 7$4,373 USD
Retailer 2$4,437 USD
Retailer 8$4,597 USD
MOH London$6,538 USD

30 data points across 10 retailers

9 retailers$2,790 USD to $6,538 USD

B+
Cheapest Retailer
-
$2,790 USD
B+
Retailer 2
-
$3,045 USD
View
B+
Retailer 3
-
$3,107 USD
View
B+
Retailer 4
-
$3,836 USD
View
B+
Retailer 5
-
$3,926 USD
£3,091 GBP
View
B+
Retailer 6
-
$4,373 USD
View
B+
Retailer 7
-
$4,437 USD
€4,226 EUR
View
B+
Retailer 8
-
$4,597 USD
ZAR 74,258 ZAR
View
Price last confirmed 43 days ago
Most Expensive
B
MOH London
8ECCA19DD · Oct 1
$6,538 USD
£5,148 GBP
View
8 more retailers have this diamond
Prices start from $2,790 USDSave up to $3,748 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.

B+
1.51ct Radiant
$2,790 USD