Round|Natural|GIA

1.50ct I SI2 Round Natural Diamond

EX • I/SI2 • GIA 1549592517

Certificate GIA 1549592517

Diamond specifications and retailer prices

From £2,455 GBP
HK$25,700 HKD
As of October 30, 2026
Save £1,827 GBP (43%) vs most expensive(unlock to see where)
31 retailers carry this diamond
Most expensive: £4,282 GBP at NZ Jewellers · As of October 23, 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 top-tier cut grade and certified by GIA 1549592517. Listed at 31 retailers as of October 30, 2026, with a 74% spread between the cheapest and most expensive listing. That is exactly the kind of price-discovery gap Carat Hunter was built to surface. SI-grade stones are eye-clean roughly 60 to 70% of the time at this carat range. Check the inclusion plot on the cert and ask the retailer for high-resolution video before buying.

The 4Cs

1.50
Carat
I
Colour
SI2
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 1549592517
Dimensions7.24 × 7.30 × 4.56 mm
L/W Ratio1.01
Top View
7.24 mm7.30 mm1.50 ctI / SI2
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 1549592517
Side View
Table 57.0%CrownGirdle: MED-STKPavilionCulet: NoneDepth 62.7%

Caratlytics Score

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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 30
Current: £4,282 GBP|Low: £2,394 GBP|High: £4,282 GBP|Avg: £3,032 GBP
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
October 30, 2026
Retailer 9£2,455 GBP
Retailer 13£2,458 GBP
Retailer 14£2,458 GBP
Retailer 15£2,552 GBP
Retailer 6£2,601 GBP
Retailer 12£2,615 GBP
Retailer 3£2,725 GBP
Retailer 17£2,779 GBP
Retailer 10£2,836 GBP
Retailer 8£2,914 GBP
Retailer 7£3,152 GBP
Retailer 4£3,344 GBP
Retailer 16£3,344 GBP
Retailer 5£3,456 GBP
Retailer 2£3,490 GBP
Retailer 11£3,708 GBP
NZ Jewellers£4,282 GBP

36 data points across 17 retailers

31 retailers£2,455 GBP to £4,282 GBP

Retailer 1
-
£2,397 GBP
$3,212 USD
Price last confirmed 54 days ago
Retailer 2
-
£2,397 GBP
$3,212 USD
View
Price last confirmed 44 days ago
A
Retailer 3
-
£2,455 GBP
HK$25,700 HKD
View
A
Retailer 4
-
£2,458 GBP
$3,293 USD
View
A
Retailer 5
-
£2,458 GBP
$3,293 USD
View
Retailer 6
-
£2,458 GBP
$3,293 USD
View
Price last confirmed 20 days ago
A
Retailer 7
-
£2,458 GBP
$3,293 USD
View
Retailer 8
-
£2,458 GBP
$3,293 USD
View
Price last confirmed 9 days ago
Retailer 9
-
£2,458 GBP
$3,293 USD
View
Price last confirmed 20 days ago
A
Retailer 10
-
£2,552 GBP
$3,420 USD
View
A
Retailer 11
-
£2,601 GBP
$3,485 USD
View
Final sale: no returns
A
Retailer 12
-
£2,615 GBP
$3,504 USD
View
A
Retailer 13
-
£2,712 GBP
A$5,591 AUD
View
Retailer 14
-
£2,725 GBP
$3,651 USD
View
Price last confirmed 19 days ago
Retailer 15
-
£2,766 GBP
$3,706 USD
View
Price last confirmed 55 days ago
A
Retailer 16
-
£2,779 GBP
SGD 5,031 SGD
View
A
Retailer 17
-
£2,836 GBP
$3,800 USD
View
Retailer 18
-
£2,836 GBP
$3,800 USD
View
Price last confirmed 23 days ago
Retailer 19
-
£2,836 GBP
$3,800 USD
View
Price last confirmed 8 days ago
Retailer 20
-
£2,836 GBP
$3,800 USD
View
Price last confirmed 20 days ago
A
Retailer 21
-
£2,914 GBP
$3,905 USD
View
A
Retailer 22
-
£3,152 GBP
$4,223 USD
View
A
Retailer 23
-
£3,344 GBP
$4,480 USD
View
A
Retailer 24
-
£3,344 GBP
$4,480 USD
View
A
Retailer 25
-
£3,456 GBP
$4,630 USD
View
A
Retailer 26
-
£3,490 GBP
€4,454 EUR
View
A
Retailer 27
-
£3,708 GBP
View
B+
Retailer 28
-
£4,282 GBP
$5,738 USD
View
Retailer 29
-
£4,282 GBP
$5,738 USD
View
Price last confirmed 20 days ago
Retailer 30
-
£4,282 GBP
$5,738 USD
View
Price last confirmed 22 days ago
Most Expensive
NZ Jewellers
6e588811-ff17-43da-bf6f-f2a22d2ac546 · Oct 23
£4,282 GBP
$5,738 USD
View
Price last confirmed 8 days ago
30 more retailers have this diamond
Prices start from £2,455 GBPSave up to £1,827 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
£2,455 GBP