Marquise|Natural|GIA

1.50ct K SI2 Marquise Natural Diamond

GD • K/SI2 • GIA 5553836447

Certificate GIA 5553836447

Diamond specifications and retailer prices

From £4,285 GBP
As of November 6, 2026
Save £495 GBP (10%) vs most expensive(unlock to see where)
19 retailers carry this diamond
Most expensive: £7,818 GBP at NZ Jewellers · As of October 17, 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 K colour (faint-tinted) and SI2 clarity (slightly-included), with a standard cut grade stated by the retailer rather than the lab and certified by GIA 5553836447. Listed at 19 retailers as of November 6, 2026, with a relatively tight 12% 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
K
Colour
SI2
Clarity
Good
Cut (retailer stated)

Specifications

Cut (retailer stated)Good
PolishExcellent
SymmetryVery Good
FluorescenceFaint
OriginNatural
Grading LabGIA
CertificateGIA 5553836447
Dimensions10.94 × 5.89 × 3.81 mm
L/W Ratio1.86
Culet sizeNone
Key to symbols
Crystal, Feather, Cavity, Indented Natural, Needle, Natural
Top View
10.94 mm5.89 mm1.50 ctK / SI2
OriginNatural
CutGood
PolishExcellent
SymmetryVery Good
FluorescenceFaint
CertificateGIA 5553836447
Side View
Table 60.0%CrownGirdle: THK-ETKPavilionCulet: NoneDepth 64.6%

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 6
Current: £7,818 GBP|Low: £3,162 GBP|High: £7,818 GBP|Avg: £4,862 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
October 21, 2026
Retailer 9£3,162 GBP
Retailer 10£3,687 GBP
Retailer 6£3,694 GBP
Retailer 3£3,942 GBP
Retailer 7£4,182 GBP
Retailer 4£4,235 GBP
Retailer 16£4,235 GBP
Retailer 17£4,235 GBP
Retailer 13£4,285 GBP
Retailer 2£4,506 GBP
Retailer 14£4,780 GBP
Retailer 5£4,886 GBP
Retailer 11£5,070 GBP
Retailer 8£5,155 GBP
Retailer 15£6,841 GBP
Retailer 12£6,923 GBP
NZ Jewellers£7,818 GBP

27 data points across 17 retailers

19 retailers£4,285 GBP to £4,780 GBP

Retailer 1
-
£3,687 GBP
Price last confirmed 20 days ago
Retailer 2
-
£3,694 GBP
View
Price last confirmed 18 days ago
Retailer 3
-
£3,942 GBP
View
Price last confirmed 18 days ago
Retailer 4
-
£4,182 GBP
View
Price last confirmed 20 days ago
Retailer 5
-
£4,235 GBP
View
Price last confirmed 46 days ago
Retailer 6
-
£4,235 GBP
View
Price last confirmed 18 days ago
Retailer 7
-
£4,235 GBP
View
Price last confirmed 21 days ago
Retailer 8
-
£4,235 GBP
View
Price last confirmed 22 days ago
B
Retailer 9
-
£4,285 GBP
View
Retailer 10
-
£4,506 GBP
View
Price last confirmed 17 days ago
B
Retailer 11
-
£4,780 GBP
View
Retailer 12
-
£4,886 GBP
View
Price last confirmed 46 days ago
Retailer 13
-
£4,886 GBP
View
Price last confirmed 19 days ago
Retailer 14
-
£4,886 GBP
View
Price last confirmed 62 days ago
Retailer 15
-
£5,155 GBP
View
Price last confirmed 23 days ago
Retailer 16
-
£6,841 GBP
View
Price last confirmed 19 days ago
Retailer 17
-
£6,923 GBP
View
Price last confirmed 19 days ago
Retailer 18
-
£7,818 GBP
View
Price last confirmed 47 days ago
Most Expensive
NZ Jewellers
0b5d5f89-6ae5-4032-a6f7-672c72bbc066 · Oct 17
£7,818 GBP
$10,464 USD
View
Price last confirmed 20 days ago
18 more retailers have this diamond
Prices start from £4,285 GBPSave up to £495 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
£4,285 GBP