Marquise|Natural|GIA

1.50ct J SI1 Marquise Natural Diamond

GD • J/SI1 • GIA 7542187299

Certificate GIA 7542187299

Diamond specifications and retailer prices

From £5,368 GBP
As of November 5, 2026
Save £6,183 GBP (54%) vs most expensive(unlock to see where)
20 retailers carry this diamond
Most expensive: £11,551 GBP at NZ Jewellers · As of November 5, 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 J 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 7542187299. Listed at 20 retailers as of November 5, 2026, with prices from £5,368 to £11,551, a £6,183 spread on the same certified stone. NZ Jewellers lists it at £11,551. 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
J
Colour
SI1
Clarity
Good
Cut (retailer stated)

Specifications

Cut (retailer stated)Good
PolishExcellent
SymmetryVery Good
FluorescenceNone
Crown angle39.76°
Pavilion angle36.92°
OriginNatural
Grading LabGIA
CertificateGIA 7542187299
Dimensions11.09 × 5.89 × 3.51 mm
L/W Ratio1.88
Culet sizeNone
Top View
11.09 mm5.89 mm1.50 ctJ / SI1
OriginNatural
CutGood
PolishExcellent
SymmetryVery Good
FluorescenceNone
CertificateGIA 7542187299
Side View
Table 64.0%Crown 39.76°Girdle: MED-VTKPavilion 36.92°Culet: NoneDepth 59.6%

Caratlytics Score

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B
Good
Decent quality, room for better deals
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See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 5
Current: £7,127 GBP|Low: £5,775 GBP|High: £9,740 GBP|Avg: £7,223 GBP|+2.0%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
November 6, 2026
Retailer 7£5,775 GBP
Retailer 6£6,353 GBP
Retailer 2£6,380 GBP
Retailer 5£6,508 GBP
Retailer 1£7,127 GBP
Retailer 3£8,426 GBP
Retailer 4£9,624 GBP

44 data points across 7 retailers

20 retailers£5,368 GBP to £11,551 GBP

B
Cheapest Retailer
-
£5,368 GBP
B
Retailer 2
-
£5,408 GBP
View
B
Retailer 3
-
£5,669 GBP
View
B
Retailer 4
-
£5,756 GBP
View
Retailer 5
-
£5,775 GBP
View
Price last confirmed 9 days ago
B
Retailer 6
-
£5,824 GBP
View
B
Retailer 7
-
£6,257 GBP
View
B
Retailer 8
-
£6,353 GBP
View
B
Retailer 9
-
£6,380 GBP
View
Retailer 10
-
£6,508 GBP
View
Price last confirmed 15 days ago
B
Retailer 11
-
£6,630 GBP
View
B
Retailer 12
-
£6,866 GBP
View
B
Retailer 13
-
£6,866 GBP
View
C
Retailer 14
-
£7,090 GBP
View
B
Retailer 15
-
£7,127 GBP
View
C
Retailer 16
-
£7,219 GBP
View
Retailer 17
-
£7,605 GBP
View
Price last confirmed 15 days ago
C
Retailer 18
-
£8,426 GBP
View
C
Retailer 19
-
£9,624 GBP
View
Most Expensive
C
NZ Jewellers
74e38fa7-dc3b-41f6-8000-3e83fe56b6c2 · Nov 5
£11,551 GBP
$15,461 USD
View
19 more retailers have this diamond
Prices start from £5,368 GBPSave up to £6,183 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 Marquise
£5,368 GBP