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Marquise|Natural|GIA

1.50ct G SI1 Marquise Natural Diamond

GD • G/SI1 • GIA 6552564290

Certificate GIA 6552564290

Diamond specifications and retailer prices

From £6,018 GBP
HK$63,000 HKD
As of November 1, 2026
Save £4,865 GBP (45%) vs most expensive(unlock to see where)
16 retailers carry this diamond
Most expensive: £10,884 GBP at NZ Jewellers · As of October 30, 2026
View at NZ Jewellers

About this 1.5ct natural marquise diamond

This 1.5ct natural marquise sits in the one-and-a-half to two carat band, graded G colour (near-colourless) and SI1 clarity (slightly-included), with a standard cut grade stated by the retailer rather than the lab and certified by GIA 6552564290. Listed at 16 retailers as of October 30, 2026, with prices from £6,018 to £10,884, a £4,865 spread on the same certified stone. NZ Jewellers lists it at £10,884. Cut grade matters more than carat or clarity for visible brilliance. If you can shift budget toward an Excellent or Ideal cut, do it before chasing higher colour or clarity.

The 4Cs

1.50
Carat
G
Colour
SI1
Clarity
Good
Cut (retailer stated)

Specifications

Cut (retailer stated)Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 6552564290
Dimensions11.90 × 5.96 × 3.36 mm
L/W Ratio2.00
Culet sizeNone
Key to symbols
Feather, Crystal, Cavity, Pinpoint
Top View
11.90 mm5.96 mm1.50 ctG / SI1
OriginNatural
CutGood
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 6552564290
Side View
Table 59.0%CrownGirdle: STK-XTKPavilionCulet: NoneDepth 56.4%

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: £10,884 GBP|Low: £5,991 GBP|High: £10,914 GBP|Avg: £7,706 GBP|-0.3%
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
November 2, 2026
Retailer 14£6,018 GBP
Retailer 7£6,178 GBP
Retailer 6£6,675 GBP
Retailer 5£7,025 GBP
Retailer 13£7,174 GBP
Retailer 4£7,208 GBP
Retailer 2£7,358 GBP
Retailer 9£7,809 GBP
Retailer 8£7,929 GBP
Retailer 3£8,003 GBP
Retailer 12£9,010 GBP
Retailer 11£9,012 GBP
Retailer 10£10,253 GBP
NZ Jewellers£10,884 GBP

32 data points across 14 retailers

16 retailers£6,018 GBP to £10,884 GBP

A
Cheapest Retailer
-
£6,018 GBP
HK$63,000 HKD
B+
Retailer 2
-
£6,178 GBP
₹788,369 INR
View
B+
Retailer 3
-
£6,364 GBP
A$13,119 AUD
View
Retailer 4
-
£6,675 GBP
SGD 12,086 SGD
View
Price last confirmed 21 days ago
B+
Retailer 5
-
£7,025 GBP
$9,413 USD
View
Retailer 6
-
£7,174 GBP
A$14,788 AUD
View
Price last confirmed 9 days ago
B
Retailer 7
-
£7,208 GBP
$9,658 USD
View
Final sale: no returns
B+
Retailer 8
-
£7,358 GBP
View
B
Retailer 9
-
£7,644 GBP
A$15,758 AUD
View
B
Retailer 10
-
£7,809 GBP
$10,463 USD
View
B
Retailer 11
-
£7,929 GBP
$10,624 USD
View
B
Retailer 12
-
£8,003 GBP
$10,723 USD
View
B
Retailer 13
-
£9,010 GBP
$12,073 USD
View
B
Retailer 14
-
£9,012 GBP
$12,075 USD
View
B
Retailer 15
-
£10,253 GBP
View
Most Expensive
B
NZ Jewellers
caeb97ce-293e-45f9-b8f6-8923014d3234 · Oct 30
£10,884 GBP
$14,583 USD
View
15 more retailers have this diamond
Prices start from £6,018 GBPSave up to £4,865 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 Marquise
£6,018 GBP