Round|Natural|GIA

1.50ct I IF Round Natural Diamond

EX • I/IF • GIA 3555987080

Certificate GIA 3555987080

Diamond specifications and retailer prices

From £5,376 GBP
As of November 5, 2026
Save £1,355 GBP (20%) vs most expensive(unlock to see where)
6 retailers carry this diamond
Most expensive: £7,102 GBP at Blue Nile · As of October 20, 2026
View at Blue Nile

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 IF clarity (flawless or internally-flawless), with a top-tier cut grade and certified by GIA 3555987080. Listed at 6 retailers as of November 5, 2026, with a 25% spread between the cheapest and most expensive listing. That is exactly the kind of price-discovery gap Carat Hunter was built to surface. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.50
Carat
I
Colour
IF
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle35°
Pavilion angle41.4°
OriginNatural
Grading LabGIA
CertificateGIA 3555987080
Dimensions7.24 × 7.30 × 4.56 mm
L/W Ratio1.01
Culet sizeNone
Top View
7.24 mm7.30 mm1.50 ctI / IF
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 3555987080
Side View
Table 59.0%Crown 35°Girdle: MED-STKPavilion 41.4°Culet: NoneDepth 62.7%

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: Nov 5
Current: £7,102 GBP|Low: £5,376 GBP|High: £7,515 GBP|Avg: £6,293 GBP|-5.5%
Blue Nile
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
November 5, 2026
Retailer 2£5,376 GBP
Retailer 5£5,745 GBP
Retailer 4£6,098 GBP
Retailer 3£6,217 GBP
Retailer 6£6,731 GBP
Blue Nile£7,102 GBP

45 data points across 6 retailers

6 retailers£5,376 GBP to £6,731 GBP

A
Cheapest Retailer
-
£5,376 GBP
Retailer 2
-
£5,745 GBP
View
Price last confirmed 25 days ago
Retailer 3
-
£6,098 GBP
View
Price last confirmed 17 days ago
Retailer 4
-
£6,217 GBP
View
Price last confirmed 17 days ago
B+
Retailer 5
-
£6,731 GBP
View
Most Expensive
Blue Nile
29979868 · Oct 20
£7,102 GBP
$9,559 USD
View
Price last confirmed 16 days ago
5 more retailers have this diamond
Prices start from £5,376 GBPSave up to £1,355 GBP

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
£5,376 GBP