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Marquise|Natural|GIA

1.50ct D SI2 Marquise Natural Diamond

GD • D/SI2 • GIA 6551200028

Certificate GIA 6551200028

Diamond specifications and retailer prices

From £6,584 GBP
As of November 6, 2026
Save £4,646 GBP (41%) vs most expensive(unlock to see where)
13 retailers carry this diamond
Most expensive: £11,230 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 D colour (colourless) and SI2 clarity (slightly-included), with a standard cut grade stated by the retailer rather than the lab and certified by GIA 6551200028. Listed at 13 retailers as of November 5, 2026, with prices from £6,584 to £11,230, a £4,646 spread on the same certified stone. NZ Jewellers lists it at £11,230. 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
D
Colour
SI2
Clarity
Good
Cut (retailer stated)

Specifications

Cut (retailer stated)Good
PolishExcellent
SymmetryVery Good
FluorescenceNone
Crown angle33.7°
Pavilion angle37.5°
OriginNatural
Grading LabGIA
CertificateGIA 6551200028
Dimensions11.31 × 6.06 × 3.52 mm
L/W Ratio1.87
Girdle conditionFaceted
Culet sizeVery Small
Key to symbols
Feather, Twinning Wisp, Natural
Top View
11.31 mm6.06 mm1.50 ctD / SI2
OriginNatural
CutGood
PolishExcellent
SymmetryVery Good
FluorescenceNone
CertificateGIA 6551200028
Side View
Table 66.0%Crown 33.7°Girdle: THK-VTKPavilion 37.5°Culet: Very SmallDepth 58.1%

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 6
Current: £11,230 GBP|Low: £5,918 GBP|High: £11,230 GBP|Avg: £6,933 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
November 6, 2026
Retailer 6£5,918 GBP
Retailer 11£6,584 GBP
Retailer 9£6,594 GBP
Retailer 13£7,028 GBP
Retailer 8£7,370 GBP
Retailer 10£7,573 GBP
Retailer 5£7,839 GBP
Retailer 3£8,016 GBP
Retailer 14£8,016 GBP
Retailer 7£8,126 GBP
Retailer 2£8,265 GBP
Retailer 4£8,278 GBP
Retailer 12£10,494 GBP
NZ Jewellers£11,230 GBP

31 data points across 14 retailers

13 retailers£6,584 GBP to £11,230 GBP

A
Cheapest Retailer
-
£6,584 GBP
A
Retailer 2
-
£6,594 GBP
View
B+
Retailer 3
-
£7,028 GBP
View
B+
Retailer 4
-
£7,370 GBP
View
B+
Retailer 5
-
£7,573 GBP
View
B+
Retailer 6
-
£7,839 GBP
View
B+
Retailer 7
-
£8,016 GBP
View
B+
Retailer 8
-
£8,016 GBP
View
B+
Retailer 9
-
£8,126 GBP
View
B
Retailer 10
-
£8,265 GBP
View
B
Retailer 11
-
£8,278 GBP
View
B
Retailer 12
-
£10,494 GBP
View
Most Expensive
B
NZ Jewellers
b1de0659-68d2-4464-abe8-167f7ccc76f8 · Nov 5
£11,230 GBP
$15,031 USD
View
12 more retailers have this diamond
Prices start from £6,584 GBPSave up to £4,646 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
£6,584 GBP