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Round|Natural|GIA

1.50ct G SI2 Round Natural Diamond

EX • G/SI2 • GIA 1538231733

Certificate GIA 1538231733

Diamond specifications and retailer prices

From £2,818 GBP
HK$29,500 HKD
As of November 1, 2026
Save £3,731 GBP (57%) vs most expensive(unlock to see where)
20 retailers carry this diamond
Most expensive: £6,550 GBP at Queensmith · As of October 28, 2026
View at Queensmith

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 1538231733. Listed at 20 retailers as of October 28, 2026, with prices from £2,818 to £6,550, a £3,731 spread on the same certified stone. Queensmith lists it at £6,550. 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
PolishVery Good
SymmetryVery Good
FluorescenceNone
Crown angle36.5°
Pavilion angle40.6°
OriginNatural
Grading LabGIA
CertificateGIA 1538231733
Dimensions7.29 × 7.22 × 4.60 mm
L/W Ratio1.01
Star length45%
Lower girdle75%
Girdle conditionFaceted
Culet sizeNone
Key to symbols
Twinning Wisp, Feather, Indented Natural, Natural
Top View
7.29 mm7.22 mm1.50 ctG / SI2
OriginNatural
CutExcellent
PolishVery Good
SymmetryVery Good
FluorescenceNone
CertificateGIA 1538231733
Side View
Table 55.0%Crown 36.5°Girdle: MED-STKPavilion 40.6°Culet: NoneDepth 63.4%

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 1
Current: £6,550 GBP|Low: £2,818 GBP|High: £6,573 GBP|Avg: £4,047 GBP|+2.5%
Queensmith
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
November 1, 2026
Retailer 7£2,818 GBP
Retailer 3£3,013 GBP
Retailer 8£3,270 GBP
Retailer 9£3,299 GBP
Retailer 10£3,403 GBP
Retailer 4£3,424 GBP
Retailer 6£3,642 GBP
Retailer 2£4,153 GBP
Retailer 5£5,871 GBP
Queensmith£6,550 GBP

27 data points across 10 retailers

20 retailers£2,818 GBP to £6,550 GBP

A
Cheapest Retailer
-
£2,818 GBP
HK$29,500 HKD
A
Retailer 2
-
£3,013 GBP
₹384,499 INR
View
A
Retailer 3
-
£3,270 GBP
$4,381 USD
View
A
Retailer 4
-
£3,299 GBP
SGD 5,974 SGD
View
A
Retailer 5
-
£3,403 GBP
$4,559 USD
View
Final sale: no returns
A
Retailer 6
-
£3,424 GBP
View
A
Retailer 7
-
£3,430 GBP
$4,596 USD
View
A
Retailer 8
-
£3,587 GBP
SGD 6,494 SGD
View
A
Retailer 9
-
£3,642 GBP
View
A
Retailer 10
-
£3,672 GBP
$4,920 USD
View
Retailer 11
-
£3,686 GBP
$4,939 USD
View
Price last confirmed 33 days ago
Retailer 12
-
£3,686 GBP
$4,939 USD
View
Price last confirmed 16 days ago
Retailer 13
-
£3,686 GBP
$4,939 USD
View
Price last confirmed 33 days ago
Retailer 14
-
£3,686 GBP
$4,939 USD
View
Price last confirmed 12 days ago
A
Retailer 15
-
£3,799 GBP
$5,090 USD
View
A
Retailer 16
-
£4,153 GBP
€5,300 EUR
View
Retailer 17
-
£4,253 GBP
$5,699 USD
View
Price last confirmed 33 days ago
B+
Retailer 18
-
£5,871 GBP
View
Retailer 19
-
£6,422 GBP
$8,605 USD
View
Price last confirmed 36 days ago
Most Expensive
B
Queensmith
1538231733 · Oct 28
£6,550 GBP
View
19 more retailers have this diamond
Prices start from £2,818 GBPSave up to £3,731 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
£2,818 GBP