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Round|Natural|GIA

1.50ct I SI2 Round Natural Diamond

EX • I/SI2 • GIA 2221294516

Certificate GIA 2221294516

Diamond specifications and retailer prices

From £4,681 GBP
As of November 1, 2026
Save £5,751 GBP (55%) vs most expensive(unlock to see where)
17 retailers carry this diamond
Most expensive: £10,432 GBP at NZ Jewellers · As of November 5, 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 2221294516. Listed at 17 retailers as of November 1, 2026, with prices from £4,681 to £10,432, a £5,751 spread on the same certified stone. NZ Jewellers lists it at £10,432. 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
FluorescenceMedium
Crown angle32.5°
Pavilion angle41.2°
OriginNatural
Grading LabGIA
CertificateGIA 2221294516
Dimensions7.42 × 7.37 × 4.44 mm
L/W Ratio1.01
Culet sizeNone
Top View
7.42 mm7.37 mm1.50 ctI / SI2
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceMedium
CertificateGIA 2221294516
Side View
Table 61.0%Crown 32.5°Girdle: MED-STKPavilion 41.2°Culet: NoneDepth 60.3%

Caratlytics Score

How it works →
B+
Very Good
Strong quality and value balance
Unlock full score analysis
See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 1
Current: £10,432 GBP|Low: £4,681 GBP|High: £10,432 GBP|Avg: £6,281 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
November 6, 2026
Retailer 12£4,681 GBP
Retailer 16£4,714 GBP
Retailer 5£4,928 GBP
Retailer 6£5,216 GBP
Retailer 14£5,216 GBP
Retailer 3£5,650 GBP
Retailer 15£5,737 GBP
Retailer 2£5,790 GBP
Retailer 7£6,159 GBP
Retailer 13£6,159 GBP
Retailer 8£6,360 GBP
Retailer 10£6,402 GBP
Retailer 9£6,457 GBP
Retailer 4£6,870 GBP
Retailer 11£8,668 GBP
NZ Jewellers£10,432 GBP

40 data points across 16 retailers

17 retailers£4,681 GBP to £10,432 GBP

B+
Cheapest Retailer
-
£4,681 GBP
B+
Retailer 2
-
£4,714 GBP
View
B+
Retailer 3
-
£4,854 GBP
View
B+
Retailer 4
-
£4,928 GBP
View
Retailer 5
-
£5,216 GBP
View
Price last confirmed 8 days ago
B
Retailer 6
-
£5,216 GBP
View
Final sale: no returns
B+
Retailer 7
-
£5,650 GBP
View
B+
Retailer 8
-
£5,737 GBP
View
B+
Retailer 9
-
£5,790 GBP
View
B
Retailer 10
-
£6,159 GBP
View
B
Retailer 11
-
£6,159 GBP
View
B
Retailer 12
-
£6,360 GBP
View
B
Retailer 13
-
£6,402 GBP
View
B
Retailer 14
-
£6,457 GBP
View
Retailer 15
-
£6,870 GBP
View
Price last confirmed 14 days ago
B
Retailer 16
-
£8,668 GBP
View
Most Expensive
B
NZ Jewellers
d93e6d93-a850-4a70-a549-2346a06b03a0 · Nov 5
£10,432 GBP
$14,040 USD
View
16 more retailers have this diamond
Prices start from £4,681 GBPSave up to £5,751 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.

B+
1.50ct Round
£4,681 GBP