Marquise|Natural|GIA

1.50ct H SI2 Marquise Natural Diamond

GD • H/SI2 • GIA 7553201002

Certificate GIA 7553201002

Diamond specifications and retailer prices

From £6,479 GBP
As of November 5, 2026
Save £1,224 GBP (16%) vs most expensive(unlock to see where)
18 retailers carry this diamond
Most expensive: £12,511 GBP at NZ Jewellers · As of October 27, 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 H colour (near-colourless) and SI2 clarity (slightly-included), with a standard cut grade stated by the retailer rather than the lab and certified by GIA 7553201002. Listed at 18 retailers as of November 5, 2026, with a relatively tight 19% spread, which is unusual at this carat range and suggests competitive pricing across the listings. 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
SI2
Clarity
Good
Cut (retailer stated)

Specifications

Cut (retailer stated)Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle39.81°
Pavilion angle36.34°
OriginNatural
Grading LabGIA
CertificateGIA 7553201002
Dimensions10.92 × 5.87 × 3.61 mm
L/W Ratio1.86
Culet sizeNone
Top View
10.92 mm5.87 mm1.50 ctH / SI2
OriginNatural
CutGood
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 7553201002
Side View
Table 58.0%Crown 39.81°Girdle: THK-ETKPavilion 36.34°Culet: NoneDepth 61.6%

Caratlytics Score

How it works →
B
Good
Decent quality, room for better deals
Unlock full score analysis
See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 5
Current: £12,511 GBP|Low: £5,704 GBP|High: £12,511 GBP|Avg: £7,309 GBP
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
Retailer 15
Retailer 16
Retailer 17
Retailer 18
November 6, 2026
Retailer 6£5,704 GBP
Retailer 7£5,830 GBP
Retailer 17£5,857 GBP
Retailer 4£6,256 GBP
Retailer 3£6,308 GBP
Retailer 8£6,479 GBP
Retailer 5£6,667 GBP
Retailer 16£6,777 GBP
Retailer 14£6,779 GBP
Retailer 18£6,881 GBP
Retailer 2£6,906 GBP
Retailer 9£6,906 GBP
Retailer 11£7,289 GBP
Retailer 10£7,703 GBP
Retailer 15£7,819 GBP
Retailer 13£8,161 GBP
Retailer 12£9,821 GBP
NZ Jewellers£12,511 GBP

8 data points across 18 retailers

18 retailers£6,479 GBP to £7,703 GBP

Retailer 1
-
£5,704 GBP
Price last confirmed 10 days ago
Retailer 2
-
£5,830 GBP
View
Price last confirmed 9 days ago
Retailer 3
-
£5,857 GBP
View
Price last confirmed 11 days ago
Retailer 4
-
£6,256 GBP
View
Price last confirmed 13 days ago
Retailer 5
-
£6,308 GBP
View
Price last confirmed 13 days ago
B
Retailer 6
-
£6,479 GBP
View
Retailer 7
-
£6,667 GBP
View
Price last confirmed 12 days ago
Retailer 8
-
£6,777 GBP
View
Price last confirmed 12 days ago
Retailer 9
-
£6,779 GBP
View
Price last confirmed 10 days ago
Retailer 10
-
£6,881 GBP
View
Price last confirmed 13 days ago
B
Retailer 11
-
£6,906 GBP
View
Retailer 12
-
£6,906 GBP
View
Retailer 13
-
£7,289 GBP
View
Price last confirmed 9 days ago
B
Retailer 14
-
£7,703 GBP
View
Retailer 15
-
£7,819 GBP
View
Price last confirmed 11 days ago
Retailer 16
-
£8,161 GBP
View
Price last confirmed 10 days ago
Retailer 17
-
£9,821 GBP
View
Price last confirmed 9 days ago
Most Expensive
NZ Jewellers
0e248804-0052-475b-9611-cabb4f7084fc · Oct 27
£12,511 GBP
$16,746 USD
View
Price last confirmed 10 days ago
17 more retailers have this diamond
Prices start from £6,479 GBPSave up to £1,224 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
£6,479 GBP