Radiant|Natural|GIA

1.50ct E SI1 Radiant Natural Diamond

VG • E/SI1 • GIA 1236944160

Certificate GIA 1236944160

Diamond specifications and retailer prices

From $8,267 AUD
$5,808 USD
As of October 29, 2026
Save $6,909 AUD (46%) vs most expensive(unlock to see where)
27 retailers carry this diamond
Most expensive: $18,116 AUD at NZ Jewellers · As of October 11, 2026
View at NZ Jewellers

About this 1.5ct natural radiant diamond

This 1.5ct natural radiant sits in the one-and-a-half to two carat band, graded E colour (colourless) and SI1 clarity (slightly-included), with a very-good cut grade stated by the retailer rather than the lab and certified by GIA 1236944160. Listed at 27 retailers as of October 29, 2026, with a 84% 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

1.50
Carat
E
Colour
SI1
Clarity
Very Good
Cut (retailer stated)

Specifications

Cut (retailer stated)Very Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 1236944160
Dimensions7.31 × 5.64 × 4.02 mm
L/W Ratio1.30
Culet sizeNone
Key to symbols
Crystal, Needle
Top View
7.31 mm5.64 mm1.50 ctE / SI1
OriginNatural
CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 1236944160
Side View
Table 71.0%CrownGirdle: THK-THKPavilionCulet: NoneDepth 71.3%

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 29
Current: $10,180 AUD|Low: $7,302 AUD|High: $15,622 AUD|Avg: $10,304 AUD|-1.5%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
Retailer 13
Retailer 14
Retailer 15
Retailer 16
Retailer 17
Retailer 18
Retailer 19
Retailer 20
October 29, 2026
Retailer 8$8,267 AUD
Retailer 5$8,390 AUD
Retailer 4$8,557 AUD
Retailer 16$8,568 AUD
Retailer 9$8,675 AUD
Retailer 7$9,056 AUD
Retailer 18$9,096 AUD
Retailer 6$9,650 AUD
Retailer 11$9,813 AUD
Retailer 19$9,995 AUD
Retailer 1$10,180 AUD
Retailer 10$10,245 AUD
Retailer 17$10,442 AUD
Retailer 3$10,889 AUD
Retailer 20$10,889 AUD
Retailer 13$10,917 AUD
Retailer 14$11,176 AUD
Retailer 2$11,245 AUD
Retailer 15$13,189 AUD
Retailer 12$15,176 AUD

41 data points across 20 retailers

27 retailers$8,267 AUD to $15,176 AUD

A
Cheapest Retailer
-
$8,267 AUD
$5,808 USD
A
Retailer 2
-
$8,390 AUD
$5,894 USD
View
A
Retailer 3
-
$8,411 AUD
View
A
Retailer 4
-
$8,557 AUD
$6,012 USD
View
A
Retailer 5
-
$8,568 AUD
$6,019 USD
View
A
Retailer 6
-
$8,675 AUD
$6,094 USD
View
A
Retailer 7
-
$9,056 AUD
$6,362 USD
View
Final sale: no returns
Retailer 8
-
$9,057 AUD
$6,363 USD
View
Price last confirmed 17 days ago
A
Retailer 9
-
$9,096 AUD
$6,390 USD
View
A
Retailer 10
-
$9,650 AUD
$6,780 USD
View
B+
Retailer 11
-
$9,813 AUD
$6,894 USD
View
Retailer 12
-
$9,813 AUD
$6,894 USD
View
Price last confirmed 19 days ago
B+
Retailer 13
-
$9,995 AUD
$7,022 USD
View
B+
Retailer 14
-
$10,157 AUD
View
B+
Retailer 15
-
$10,180 AUD
£5,632 GBP
View
Retailer 16
-
$10,189 AUD
$7,158 USD
View
Price last confirmed 29 days ago
B+
Retailer 17
-
$10,245 AUD
$7,198 USD
View
Retailer 18
-
$10,442 AUD
View
Price last confirmed 7 days ago
B+
Retailer 19
-
$10,889 AUD
$7,650 USD
View
B+
Retailer 20
-
$10,889 AUD
$7,650 USD
View
B+
Retailer 21
-
$10,917 AUD
$7,669 USD
View
B+
Retailer 22
-
$11,176 AUD
€7,478 EUR
View
B+
Retailer 23
-
$11,245 AUD
$7,900 USD
View
Retailer 24
-
$11,322 AUD
$7,954 USD
View
Price last confirmed 17 days ago
B+
Retailer 25
-
$13,189 AUD
ZAR 149,693 ZAR
View
B
Retailer 26
-
$15,176 AUD
£8,395 GBP
View
Most Expensive
NZ Jewellers
aad98d3f-3b5f-438c-9e50-1c0b4e5b8c91 · Oct 11
$18,116 AUD
$12,727 USD
View
Price last confirmed 18 days ago
26 more retailers have this diamond
Prices start from $8,267 AUDSave up to $6,909 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.

A
1.50ct Radiant
$8,267 AUD