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Marquise|Natural|GIA

1.50ct H SI1 Marquise Natural Diamond

VG • H/SI1 • GIA 2546928400

Certificate GIA 2546928400

Diamond specifications and retailer prices

From £7,313 GBP
As of October 28, 2026
8 retailers carry this diamond
Most expensive: £8,118 GBP at GemsNY · As of October 23, 2026
View at GemsNY

About this 1.5ct natural marquise diamond

This 1.5ct natural marquise sits in the one-and-a-half to two carat band, graded H colour (near-colourless) and SI1 clarity (slightly-included), with a very-good cut grade stated by the retailer rather than the lab and certified by GIA 2546928400. Listed at 8 retailers as of October 28, 2026. 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
H
Colour
SI1
Clarity
Very Good
Cut (retailer stated)

Specifications

Cut (retailer stated)Very Good
PolishExcellent
SymmetryExcellent
FluorescenceStrong
Crown angle39.06°
Pavilion angle38.73°
OriginNatural
Grading LabGIA
CertificateGIA 2546928400
Dimensions11.09 × 5.98 × 3.57 mm
L/W Ratio1.85
Top View
11.09 mm5.98 mm1.50 ctH / SI1
OriginNatural
CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceStrong
CertificateGIA 2546928400
Side View
Table 60.0%Crown 39.06°Girdle: THK-VTKPavilion 38.73°Culet: NoneDepth 59.6%

Caratlytics Score

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B
Good
Decent quality, room for better deals
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Price History

Last verified: Oct 28
Current: £8,118 GBP|Low: £4,346 GBP|High: £10,388 GBP|Avg: £6,869 GBP
GemsNY
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
Retailer 16
Retailer 17
October 28, 2026
Retailer 9£4,346 GBP
Retailer 5£5,426 GBP
Retailer 7£5,638 GBP
Retailer 17£5,774 GBP
Retailer 4£5,900 GBP
Retailer 3£6,167 GBP
Retailer 13£6,388 GBP
Retailer 12£6,810 GBP
Retailer 8£6,880 GBP
Retailer 6£7,065 GBP
Retailer 16£7,071 GBP
Retailer 14£7,072 GBP
Retailer 2£7,313 GBP
Retailer 10£8,002 GBP
GemsNY£8,118 GBP
Retailer 11£8,899 GBP
Retailer 15£10,333 GBP

12 data points across 17 retailers

8 retailers

Retailer 1
-
£5,774 GBP
$7,749 USD
Price last confirmed 10 days ago
Retailer 2
-
£6,388 GBP
$8,572 USD
View
Price last confirmed 11 days ago
Retailer 3
-
£6,810 GBP
A$14,059 AUD
View
Price last confirmed 11 days ago
Retailer 4
-
£7,071 GBP
$9,489 USD
View
Price last confirmed 12 days ago
Retailer 5
-
£7,072 GBP
$9,490 USD
View
Price last confirmed 10 days ago
B
Retailer 6
-
£7,313 GBP
View
Retailer 7
-
£7,708 GBP
$10,344 USD
View
Price last confirmed 57 days ago
Most Expensive
GemsNY
N691508 · Oct 23
£8,118 GBP
$10,894 USD
View
Price last confirmed 10 days ago
7 more retailers have this diamond
Prices start from £7,313 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
£7,313 GBP