Round|Natural|GIA

1.50ct I SI2 Round Natural Diamond

VG • I/SI2 • GIA 2428351005

Certificate GIA 2428351005

Diamond specifications and retailer prices

From €3,598 EUR
HK$31,400 HKD
As of October 31, 2026
Save €4,584 EUR (56%) vs most expensive(unlock to see where)
18 retailers carry this diamond
Most expensive: €8,181 EUR at NZ Jewellers · As of October 30, 2026
View at NZ Jewellers

About this 1.5ct natural round diamond

This 1.5ct natural round sits in the one-and-a-half to two carat band, graded I colour (near-colourless) and SI2 clarity (slightly-included), with a very-good cut grade and certified by GIA 2428351005. Listed at 18 retailers as of October 30, 2026, with prices from €3,598 to €8,181, a €4,584 spread on the same certified stone. NZ Jewellers lists it at €8,181. 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
SI2
Clarity
Very Good
Cut

Specifications

CutVery Good
PolishVery Good
SymmetryVery Good
FluorescenceNone
Crown angle38°
Pavilion angle40.6°
OriginNatural
Grading LabGIA
CertificateGIA 2428351005
Dimensions7.20 × 7.12 × 4.59 mm
L/W Ratio1.01
Top View
7.20 mm7.12 mm1.50 ctI / SI2
OriginNatural
CutVery Good
PolishVery Good
SymmetryVery Good
FluorescenceNone
CertificateGIA 2428351005
Side View
Table 57.0%Crown 38°Girdle: MED-THKPavilion 40.6°Culet: NoneDepth 64.1%

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 31
Current: €8,181 EUR|Low: €3,542 EUR|High: €8,199 EUR|Avg: €4,987 EUR
NZ Jewellers
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 11€3,598 EUR
Retailer 6€3,652 EUR
Retailer 18€3,782 EUR
Retailer 5€4,091 EUR
Retailer 9€4,162 EUR
Retailer 3€4,432 EUR
Retailer 10€4,432 EUR
Retailer 4€4,664 EUR
Retailer 2€4,742 EUR
Retailer 7€4,968 EUR
Retailer 16€4,968 EUR
Retailer 12€5,020 EUR
Retailer 8€5,114 EUR
Retailer 17€5,129 EUR
Retailer 13€5,307 EUR
Retailer 15€5,397 EUR
Retailer 14€7,833 EUR
NZ Jewellers€8,181 EUR

36 data points across 18 retailers

18 retailers€3,598 EUR to €8,181 EUR

A
Cheapest Retailer
-
€3,598 EUR
HK$31,400 HKD
A
Retailer 2
-
€3,652 EUR
$4,080 USD
View
Retailer 3
-
€3,782 EUR
$4,225 USD
View
Price last confirmed 14 days ago
B+
Retailer 4
-
€4,091 EUR
$4,570 USD
View
Final sale: no returns
B+
Retailer 5
-
€4,162 EUR
$4,650 USD
View
B+
Retailer 6
-
€4,432 EUR
$4,951 USD
View
B+
Retailer 7
-
€4,432 EUR
$4,951 USD
View
B+
Retailer 8
-
€4,664 EUR
$5,211 USD
View
B+
Retailer 9
-
€4,742 EUR
£4,171 GBP
View
B+
Retailer 10
-
€4,968 EUR
$5,550 USD
View
B+
Retailer 11
-
€4,968 EUR
$5,550 USD
View
B+
Retailer 12
-
€5,020 EUR
View
B+
Retailer 13
-
€5,114 EUR
$5,713 USD
View
B+
Retailer 14
-
€5,129 EUR
$5,730 USD
View
B+
Retailer 15
-
€5,307 EUR
£4,668 GBP
View
Retailer 16
-
€5,397 EUR
$6,030 USD
View
Price last confirmed 9 days ago
B
Retailer 17
-
€7,833 EUR
£6,891 GBP
View
Most Expensive
B
NZ Jewellers
714a9b61-9224-4925-ae64-248397bf7913 · Oct 30
€8,181 EUR
$9,140 USD
View
17 more retailers have this diamond
Prices start from €3,598 EURSave up to €4,584 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 Round
€3,598 EUR