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Radiant|Natural|GIA

1.51ct E SI2 Radiant Natural Diamond

GD • E/SI2 • GIA 5443450848

Certificate GIA 5443450848

Diamond specifications and retailer prices

From $11,666 AUD
$8,196 USD
As of October 28, 2026
Save $10,910 AUD (48%) vs most expensive(unlock to see where)
12 retailers carry this diamond
Most expensive: $22,577 AUD at NZ Jewellers · As of October 27, 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 E colour (colourless) and SI2 clarity (slightly-included), with a standard cut grade stated by the retailer rather than the lab and certified by GIA 5443450848. Listed at 12 retailers as of October 27, 2026, with prices from $11,666 to $22,577, a $10,910 spread on the same certified stone. NZ Jewellers lists it at $22,577. 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
SI2
Clarity
Good
Cut (retailer stated)

Specifications

Cut (retailer stated)Good
PolishVery Good
SymmetryVery Good
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 5443450848
Dimensions7.35 × 6.35 × 3.61 mm
L/W Ratio1.16
Culet sizeNone
Top View
7.35 mm6.35 mm1.51 ctE / SI2
OriginNatural
CutGood
PolishVery Good
SymmetryVery Good
FluorescenceNone
CertificateGIA 5443450848
Side View
Table 70.0%CrownGirdle: THK-VERPavilionCulet: NoneDepth 56.8%

Caratlytics Score

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

Price History

Last verified: Oct 28
Current: $22,577 AUD|Low: $11,421 AUD|High: $22,577 AUD|Avg: $15,190 AUD
NZ Jewellers
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
October 29, 2026
Retailer 8$11,666 AUD
Retailer 7$12,459 AUD
Retailer 12$12,470 AUD
Retailer 2$12,793 AUD
Retailer 10$13,498 AUD
Retailer 11$13,706 AUD
Retailer 4$13,800 AUD
Retailer 6$14,726 AUD
Retailer 9$15,575 AUD
Retailer 3$16,092 AUD
Retailer 5$18,912 AUD
NZ Jewellers$22,577 AUD

41 data points across 12 retailers

12 retailers$11,666 AUD to $22,577 AUD

B+
Cheapest Retailer
-
$11,666 AUD
$8,196 USD
B
Retailer 2
-
$12,459 AUD
$8,753 USD
View
Final sale: no returns
B
Retailer 3
-
$12,470 AUD
View
B
Retailer 4
-
$12,793 AUD
£7,077 GBP
View
B
Retailer 5
-
$13,498 AUD
$9,483 USD
View
B
Retailer 6
-
$13,706 AUD
$9,629 USD
View
B
Retailer 7
-
$13,800 AUD
$9,695 USD
View
B
Retailer 8
-
$14,726 AUD
€9,853 EUR
View
Retailer 9
-
$15,575 AUD
$10,942 USD
View
Price last confirmed 53 days ago
B
Retailer 10
-
$15,575 AUD
$10,942 USD
View
B
Retailer 11
-
$18,912 AUD
£10,462 GBP
View
Most Expensive
C
NZ Jewellers
0a630d1a-b350-4111-b003-006784d9bacf · Oct 27
$22,577 AUD
$15,861 USD
View
11 more retailers have this diamond
Prices start from $11,666 AUDSave up to $10,910 AUD

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.

B+
1.51ct Radiant
$11,666 AUD