Radiant|Natural|GIA

1.50ct I SI1 Radiant Natural Diamond

VG • I/SI1 • GIA 6455634917

Certificate GIA 6455634917

Diamond specifications and retailer prices

From €2,521 EUR
HK$22,000 HKD
As of October 31, 2026
Save €1,982 EUR (44%) vs most expensive(unlock to see where)
19 retailers carry this diamond
Most expensive: €5,639 EUR at MOH London · As of October 21, 2026
View at MOH London

About this 1.5ct natural radiant diamond

This 1.5ct natural radiant sits in the one-and-a-half to two carat band, graded I colour (near-colourless) and SI1 clarity (slightly-included), with a very-good cut grade stated by the retailer rather than the lab and certified by GIA 6455634917. Listed at 19 retailers as of October 31, 2026, with a 79% 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
I
Color
SI1
Clarity
Very Good
Cut (retailer stated)

Specifications

Cut (retailer stated)Very Good
PolishExcellent
SymmetryVery Good
FluorescenceNone
Pavilion angle42.2°
OriginNatural
Grading LabGIA
CertificateGIA 6455634917
Dimensions6.20 × 6.17 × 4.18 mm
L/W Ratio1.00
Top View
6.20 mm6.17 mm1.50 ctI / SI1
OriginNatural
CutVery Good
PolishExcellent
SymmetryVery Good
FluorescenceNone
CertificateGIA 6455634917
Side View
Table 64.0%CrownGirdle: Slightly ThickPavilion 42.2°Culet: NoneDepth 67.8%

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 31
Current: €5,639 EUR|Low: €2,498 EUR|High: €5,969 EUR|Avg: €3,554 EUR|-5.5%
MOH London
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
November 1, 2026
Retailer 13€2,521 EUR
Retailer 3€2,707 EUR
Retailer 4€2,727 EUR
Retailer 11€2,757 EUR
Retailer 9€2,783 EUR
Retailer 16€2,929 EUR
Retailer 17€2,931 EUR
Retailer 7€3,049 EUR
Retailer 2€3,178 EUR
Retailer 15€3,192 EUR
Retailer 18€3,446 EUR
Retailer 8€3,450 EUR
Retailer 10€3,778 EUR
Retailer 14€3,927 EUR
Retailer 12€4,123 EUR
Retailer 6€4,502 EUR
Retailer 5€5,293 EUR
MOH London€5,639 EUR

25 data points across 18 retailers

19 retailers€2,521 EUR to €4,502 EUR

A
Cheapest Retailer
-
€2,521 EUR
HK$22,000 HKD
A
Retailer 2
-
€2,707 EUR
$3,024 USD
View
A
Retailer 3
-
€2,727 EUR
$3,047 USD
View
A
Retailer 4
-
€2,757 EUR
$3,080 USD
View
Final sale: no returns
A
Retailer 5
-
€2,783 EUR
$3,109 USD
View
A
Retailer 6
-
€2,929 EUR
View
A
Retailer 7
-
€2,931 EUR
$3,275 USD
View
A
Retailer 8
-
€3,049 EUR
$3,406 USD
View
A
Retailer 9
-
€3,178 EUR
£2,795 GBP
View
A
Retailer 10
-
€3,192 EUR
£2,808 GBP
View
A
Retailer 11
-
€3,446 EUR
$3,850 USD
View
A
Retailer 12
-
€3,450 EUR
SGD 5,209 SGD
View
Retailer 13
-
€3,778 EUR
A$6,493 AUD
View
Price last confirmed 24 days ago
B+
Retailer 14
-
€3,810 EUR
A$6,548 AUD
View
A
Retailer 15
-
€3,927 EUR
View
A
Retailer 16
-
€4,123 EUR
ZAR 74,412 ZAR
View
A
Retailer 17
-
€4,502 EUR
$5,030 USD
View
Retailer 18
-
€5,293 EUR
$5,914 USD
View
Price last confirmed 9 days ago
Most Expensive
MOH London
401DF6A1A · Oct 21
€5,639 EUR
£4,961 GBP
View
Price last confirmed 11 days ago
18 more retailers have this diamond
Prices start from €2,521 EURSave up to €1,982 EUR

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
€2,521 EUR