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Round|Natural|GIA

1.50ct G SI2 Round Natural Diamond

EX • G/SI2 • GIA 6415623764

Certificate GIA 6415623764

Diamond specifications and retailer prices

From £3,859 GBP
HK$40,400 HKD
As of October 31, 2026
Save £5,350 GBP (58%) vs most expensive(unlock to see where)
18 retailers carry this diamond
Most expensive: £9,210 GBP at Diamond Quarter · As of October 31, 2026
View at Diamond Quarter

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 SI2 clarity (slightly-included), with a top-tier cut grade and certified by GIA 6415623764. Listed at 18 retailers as of October 31, 2026, with prices from £3,859 to £9,210, a £5,350 spread on the same certified stone. Diamond Quarter lists it at £9,210. 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
SI2
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceFaint
OriginNatural
Grading LabGIA
CertificateGIA 6415623764
Dimensions7.38 × 7.35 × 4.50 mm
L/W Ratio1.00
Top View
7.38 mm7.35 mm1.50 ctG / SI2
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceFaint
CertificateGIA 6415623764
Side View
Table 57.0%CrownGirdle: MED-SLIPavilionCulet: NoneDepth 61.1%

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: £4,945 GBP|Low: £3,821 GBP|High: £8,681 GBP|Avg: £5,365 GBP|-0.6%
Retailer 1
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
November 1, 2026
Retailer 8£3,859 GBP
Retailer 4£4,206 GBP
Retailer 5£4,510 GBP
Retailer 3£4,791 GBP
Retailer 12£4,791 GBP
Retailer 10£4,836 GBP
Retailer 1£4,945 GBP
Retailer 14£5,191 GBP
Retailer 7£5,194 GBP
Retailer 13£5,271 GBP
Retailer 6£5,310 GBP
Retailer 9£5,672 GBP
Retailer 2£5,989 GBP
Retailer 11£7,688 GBP
Retailer 15£8,681 GBP

30 data points across 15 retailers

18 retailers£3,859 GBP to £9,210 GBP

A
Cheapest Retailer
-
£3,859 GBP
HK$40,400 HKD
A
Retailer 2
-
£4,206 GBP
₹536,737 INR
View
Retailer 3
-
£4,396 GBP
SGD 7,960 SGD
View
Price last confirmed 18 days ago
A
Retailer 4
-
£4,510 GBP
$6,043 USD
View
A
Retailer 5
-
£4,526 GBP
$6,065 USD
View
B+
Retailer 6
-
£4,791 GBP
$6,419 USD
View
Final sale: no returns
A
Retailer 7
-
£4,791 GBP
$6,420 USD
View
A
Retailer 8
-
£4,836 GBP
View
A
Retailer 9
-
£4,945 GBP
View
B+
Retailer 10
-
£5,191 GBP
$6,955 USD
View
B+
Retailer 11
-
£5,194 GBP
$6,960 USD
View
B+
Retailer 12
-
£5,271 GBP
$7,062 USD
View
B+
Retailer 13
-
£5,310 GBP
$7,115 USD
View
B+
Retailer 14
-
£5,672 GBP
€7,238 EUR
View
B+
Retailer 15
-
£5,989 GBP
$8,025 USD
View
B
Retailer 16
-
£7,688 GBP
View
B
Retailer 17
-
£8,681 GBP
$11,632 USD
View
Most Expensive
B
Diamond Quarter
1.5SI2G646416B8N · Oct 31
£9,210 GBP
View
17 more retailers have this diamond
Prices start from £3,859 GBPSave up to £5,350 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
£3,859 GBP