CaratHunter
Plans
Radiant|Natural|GIA

1.51ct E SI1 Radiant Natural Diamond

GD • E/SI1 • GIA 1549544742

Certificate GIA 1549544742

Diamond specifications and retailer prices

From $7,760 NZD
₹416,516 INR
As of October 30, 2026
Save $2,050 NZD (21%) vs most expensive(unlock to see where)
7 retailers carry this diamond
Most expensive: $9,810 NZD at Blue Nile · As of October 29, 2026
View at Blue Nile

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 standard cut grade stated by the retailer rather than the lab and certified by GIA 1549544742. Listed at 7 retailers as of October 29, 2026, with prices from $7,760 to $9,810, a $2,050 spread on the same certified stone. Blue Nile lists it at $9,810. 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
E
Colour
SI1
Clarity
Good
Cut (retailer stated)

Specifications

Cut (retailer stated)Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 1549544742
Dimensions6.90 × 5.63 × 4.06 mm
L/W Ratio1.23
Culet sizeNone
Key to symbols
Crystal, Cloud, Feather, Needle
Top View
6.90 mm5.63 mm1.51 ctE / SI1
OriginNatural
CutGood
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 1549544742
Side View
Table 68.0%CrownGirdle: THK-VTKPavilionCulet: NoneDepth 72.1%

Caratlytics Score

How it works →
A
Excellent
Excellent quality and great value
Unlock full score analysis
See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Oct 30
Current: $9,810 NZD|Low: $7,713 NZD|High: $11,274 NZD|Avg: $9,435 NZD|-10.5%
Blue Nile
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
October 30, 2026
Retailer 2$7,760 NZD
Retailer 3$8,279 NZD
Retailer 5$8,719 NZD
Retailer 4$8,944 NZD
Retailer 6$9,720 NZD
Blue Nile$9,810 NZD
Retailer 7$11,274 NZD

45 data points across 7 retailers

7 retailers$7,760 NZD to $9,810 NZD

A
Cheapest Retailer
-
$7,760 NZD
₹416,516 INR
A
Retailer 2
-
$8,279 NZD
$4,666 USD
View
A
Retailer 3
-
$8,719 NZD
MYR 20,016 MYR
View
A
Retailer 4
-
$8,944 NZD
SGD 6,812 SGD
View
B+
Retailer 5
-
$9,671 NZD
A$8,386 AUD
View
B+
Retailer 6
-
$9,720 NZD
A$8,428 AUD
View
Most Expensive
B+
Blue Nile
28033809 · Oct 29
$9,810 NZD
$5,529 USD
View
6 more retailers have this diamond
Prices start from $7,760 NZDSave up to $2,050 NZD

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
$7,760 NZD