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Round|Natural|GIA

1.50ct G SI1 Round Natural Diamond

EX • G/SI1 • GIA 2245065036

Certificate GIA 2245065036

Diamond specifications and retailer prices

From £4,296 GBP
HK$44,600 HKD
As of October 29, 2026
Save £3,965 GBP (48%) vs most expensive(unlock to see where)
9 retailers carry this diamond
Most expensive: £10,362 GBP at NZ Jewellers · As of October 6, 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 G colour (near-colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by GIA 2245065036. Listed at 9 retailers as of October 29, 2026, with a 92% 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
G
Colour
SI1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Pavilion angle40.8°
OriginNatural
Grading LabGIA
CertificateGIA 2245065036
Dimensions7.23 × 7.29 × 4.53 mm
L/W Ratio1.01
Key to symbols
Crystal, Feather, Indented Natural
Top View
7.23 mm7.29 mm1.50 ctG / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 2245065036
Side View
Table 59.0%CrownGirdle: MED-STKPavilion 40.8°Culet: NoneDepth 62.3%

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 29
Current: £4,874 GBP|Low: £4,296 GBP|High: £8,822 GBP|Avg: £5,943 GBP|-3.8%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
October 29, 2026
Retailer 6£4,296 GBP
Retailer 1£4,874 GBP
Retailer 7£5,123 GBP
Retailer 8£5,152 GBP
Retailer 5£5,896 GBP
Retailer 2£6,297 GBP
Retailer 4£6,375 GBP
Retailer 3£8,262 GBP

31 data points across 8 retailers

9 retailers£4,296 GBP to £8,262 GBP

A
Cheapest Retailer
-
£4,296 GBP
HK$44,600 HKD
A
Retailer 2
-
£4,874 GBP
€6,168 EUR
View
A
Retailer 3
-
£5,123 GBP
$6,807 USD
View
A
Retailer 4
-
£5,152 GBP
SGD 9,251 SGD
View
Price last confirmed 17 days ago
B+
Retailer 5
-
£5,896 GBP
$7,835 USD
View
B+
Retailer 6
-
£6,297 GBP
View
B+
Retailer 7
-
£6,375 GBP
€8,067 EUR
View
B
Retailer 8
-
£8,262 GBP
View
Most Expensive
B
NZ Jewellers
f6ad711c-d29e-4e71-839f-f5b861a0aef1 · Oct 6
£10,362 GBP
$13,768 USD
View
Price last confirmed 23 days ago
8 more retailers have this diamond
Prices start from £4,296 GBPSave up to £3,965 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
£4,296 GBP