Radiant|Natural|GIA

1.50ct E SI1 Radiant Natural Diamond

VG • E/SI1 • GIA 1236944160

Certificate GIA 1236944160

Diamond specifications and retailer prices

From $5,808 USD
As of October 29, 2026
Save $4,854 USD (46%) vs most expensive(unlock to see where)
27 retailers carry this diamond
Most expensive: $12,727 USD 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
Color
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
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See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Oct 29
Current: $7,174 USD|Low: $5,130 USD|High: $10,975 USD|Avg: $7,237 USD|-2.2%
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 30, 2026
Retailer 8$5,808 USD
Retailer 5$5,894 USD
Retailer 4$6,012 USD
Retailer 16$6,019 USD
Retailer 9$6,094 USD
Retailer 7$6,362 USD
Retailer 18$6,390 USD
Retailer 6$6,780 USD
Retailer 11$6,894 USD
Retailer 19$7,022 USD
Retailer 1$7,174 USD
Retailer 10$7,198 USD
Retailer 17$7,336 USD
Retailer 3$7,650 USD
Retailer 20$7,650 USD
Retailer 13$7,669 USD
Retailer 14$7,852 USD
Retailer 2$7,900 USD
Retailer 15$9,266 USD
Retailer 12$10,662 USD

42 data points across 20 retailers

27 retailers$5,808 USD to $10,662 USD

A
Cheapest Retailer
-
$5,808 USD
A
Retailer 2
-
$5,894 USD
View
A
Retailer 3
-
$5,909 USD
A$9,091 AUD
View
A
Retailer 4
-
$6,012 USD
View
A
Retailer 5
-
$6,019 USD
View
A
Retailer 6
-
$6,094 USD
View
A
Retailer 7
-
$6,362 USD
View
Final sale: no returns
Retailer 8
-
$6,363 USD
View
Price last confirmed 18 days ago
A
Retailer 9
-
$6,390 USD
View
A
Retailer 10
-
$6,780 USD
View
B+
Retailer 11
-
$6,894 USD
View
Retailer 12
-
$6,894 USD
View
Price last confirmed 19 days ago
B+
Retailer 13
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$7,022 USD
View
B+
Retailer 14
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$7,136 USD
A$10,978 AUD
View
Retailer 15
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$7,158 USD
View
Price last confirmed 29 days ago
B+
Retailer 16
-
$7,174 USD
£5,649 GBP
View
B+
Retailer 17
-
$7,198 USD
View
Retailer 18
-
$7,336 USD
A$11,287 AUD
View
Price last confirmed 8 days ago
B+
Retailer 19
-
$7,650 USD
View
B+
Retailer 20
-
$7,650 USD
View
B+
Retailer 21
-
$7,669 USD
View
B+
Retailer 22
-
$7,852 USD
€7,478 EUR
View
B+
Retailer 23
-
$7,900 USD
View
Retailer 24
-
$7,954 USD
View
Price last confirmed 18 days ago
B+
Retailer 25
-
$9,266 USD
ZAR 149,693 ZAR
View
B
Retailer 26
-
$10,662 USD
£8,395 GBP
View
Most Expensive
NZ Jewellers
aad98d3f-3b5f-438c-9e50-1c0b4e5b8c91 · Oct 11
$12,727 USD
View
Price last confirmed 18 days ago
26 more retailers have this diamond
Prices start from $5,808 USDSave up to $4,854 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
1.50ct Radiant
$5,808 USD