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Marquise|Natural|GIA

1.51ct D SI2 Marquise Natural Diamond

VG • D/SI2 • GIA 5231872032

Certificate GIA 5231872032

Diamond specifications and retailer prices

From £6,143 GBP
$8,231 USD
As of November 1, 2026
Save £4,937 GBP (45%) vs most expensive(unlock to see where)
18 retailers carry this diamond
Most expensive: £11,080 GBP at NZ Jewellers · As of October 30, 2026
View at NZ Jewellers

About this 1.51ct natural marquise diamond

This 1.51ct natural marquise sits in the one-and-a-half to two carat band, graded D colour (colourless) and SI2 clarity (slightly-included), with a very-good cut grade stated by the retailer rather than the lab and certified by GIA 5231872032. Listed at 18 retailers as of October 30, 2026, with prices from £6,143 to £11,080, a £4,937 spread on the same certified stone. NZ Jewellers lists it at £11,080. 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

1.51
Carat
D
Colour
SI2
Clarity
Very Good
Cut (retailer stated)

Specifications

Cut (retailer stated)Very Good
PolishExcellent
SymmetryVery Good
FluorescenceFaint
Crown angle40.66°
Pavilion angle37.75°
OriginNatural
Grading LabGIA
CertificateGIA 5231872032
Dimensions11.07 × 5.91 × 3.60 mm
L/W Ratio1.87
Top View
11.07 mm5.91 mm1.51 ctD / SI2
OriginNatural
CutVery Good
PolishExcellent
SymmetryVery Good
FluorescenceFaint
CertificateGIA 5231872032
Side View
Table 59.0%Crown 40.66°Girdle: MED-VTKPavilion 37.75°Culet: NoneDepth 60.9%

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 1
Current: £11,080 GBP|Low: £5,815 GBP|High: £11,091 GBP|Avg: £7,725 GBP|-0.1%
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
November 2, 2026
Retailer 4£6,143 GBP
Retailer 15£6,225 GBP
Retailer 16£6,648 GBP
Retailer 13£6,704 GBP
Retailer 10£6,841 GBP
Retailer 6£7,088 GBP
Retailer 3£7,202 GBP
Retailer 11£7,211 GBP
Retailer 8£7,305 GBP
Retailer 14£7,313 GBP
Retailer 2£7,948 GBP
Retailer 5£8,310 GBP
Retailer 9£8,374 GBP
Retailer 7£8,751 GBP
Retailer 12£10,383 GBP
NZ Jewellers£11,080 GBP

43 data points across 16 retailers

18 retailers£6,143 GBP to £11,080 GBP

A
Cheapest Retailer
-
£6,143 GBP
$8,231 USD
A
Retailer 2
-
£6,225 GBP
$8,341 USD
View
A
Retailer 3
-
£6,648 GBP
$8,908 USD
View
A
Retailer 4
-
£6,704 GBP
$8,982 USD
View
B+
Retailer 5
-
£6,841 GBP
$9,166 USD
View
Final sale: no returns
B+
Retailer 6
-
£7,088 GBP
$9,497 USD
View
B+
Retailer 7
-
£7,202 GBP
$9,650 USD
View
A
Retailer 8
-
£7,211 GBP
View
B+
Retailer 9
-
£7,305 GBP
A$15,058 AUD
View
B+
Retailer 10
-
£7,313 GBP
$9,799 USD
View
B+
Retailer 11
-
£7,747 GBP
$10,380 USD
View
B+
Retailer 12
-
£7,948 GBP
$10,650 USD
View
B+
Retailer 13
-
£8,001 GBP
$10,720 USD
View
B+
Retailer 14
-
£8,310 GBP
$11,135 USD
View
B+
Retailer 15
-
£8,374 GBP
€10,686 EUR
View
Retailer 16
-
£8,751 GBP
$11,725 USD
View
Price last confirmed 10 days ago
B
Retailer 17
-
£10,383 GBP
View
Most Expensive
B
NZ Jewellers
6013d0f1-3fb3-4cc2-8f5d-fa1f875905fa · Oct 30
£11,080 GBP
$14,846 USD
View
17 more retailers have this diamond
Prices start from £6,143 GBPSave up to £4,937 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
1.51ct Marquise
£6,143 GBP