Radiant|Natural|IGI

1.51ct I IF Radiant Natural Diamond

VG • I/IF • IGI 773617342

Shape and cutting style on the report: Cut cornered rectangular modified brilliant

Certificate IGI 773617342

Diamond specifications and retailer prices

From $3,387 USD
As of November 1, 2026
Save $2,992 USD (47%) vs most expensive(unlock to see where)
13 retailers carry this diamond
Most expensive: $6,646 USD at NZ Jewellers · As of September 29, 2026
View at NZ Jewellers

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 IF clarity (flawless or internally-flawless), with a very-good cut grade and certified by IGI 773617342. Listed at 13 retailers as of November 1, 2026, with a 88% spread between the cheapest and most expensive listing. That is exactly the kind of price-discovery gap Carat Hunter was built to surface. 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
IF
Clarity
Very Good
Cut

Specifications

CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceFaint
Crown angle32.1°
Pavilion angle28.2°
OriginNatural
Grading LabIGI
CertificateIGI 773617342
Dimensions7.62 × 5.50 × 3.82 mm
L/W Ratio1.39
Top View
7.62 mm5.50 mm1.51 ctI / IF
OriginNatural
CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceFaint
CertificateIGI 773617342
Side View
Table 56.0%Crown 32.1°Girdle: ThickPavilion 28.2°CuletDepth 69.5%

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 1
Current: $3,392 USD|Low: $2,691 USD|High: $6,457 USD|Avg: $3,966 USD|-1.3%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
November 2, 2026
Retailer 3$2,691 USD
Retailer 4$2,913 USD
Retailer 11$3,387 USD
Retailer 9$3,390 USD
Retailer 1$3,392 USD
Retailer 10$3,521 USD
Retailer 2$3,961 USD
Retailer 5$3,975 USD
Retailer 8$4,402 USD
Retailer 7$4,689 USD
Retailer 12$4,892 USD
Retailer 6$6,379 USD

33 data points across 12 retailers

13 retailers$3,387 USD to $6,379 USD

A
Cheapest Retailer
-
$3,387 USD
A
Retailer 2
-
$3,390 USD
View
A
Retailer 3
-
$3,392 USD
£2,671 GBP
View
A
Retailer 4
-
$3,521 USD
View
Final sale: no returns
Retailer 5
-
$3,815 USD
View
Price last confirmed 32 days ago
A
Retailer 6
-
$3,961 USD
View
Retailer 7
-
$3,962 USD
View
Price last confirmed 32 days ago
A
Retailer 8
-
$3,975 USD
£3,130 GBP
View
B+
Retailer 9
-
$4,402 USD
View
A
Retailer 10
-
$4,689 USD
ZAR 75,754 ZAR
View
B+
Retailer 11
-
$4,892 USD
£3,852 GBP
View
B+
Retailer 12
-
$6,379 USD
£5,023 GBP
View
Most Expensive
NZ Jewellers
ffa03cae-10b7-4fb8-a85c-200f15ccbe2d · Sep 29
$6,646 USD
View
Price last confirmed 33 days ago
12 more retailers have this diamond
Prices start from $3,387 USDSave up to $2,992 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
$3,387 USD