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Marquise|Natural|GIA

1.51ct L SI1 Marquise Natural Diamond

GD • L/SI1 • GIA 5232867278

Certificate GIA 5232867278

Diamond specifications and retailer prices

From £2,291 GBP
As of November 2, 2026
Save £1,746 GBP (43%) vs most expensive(unlock to see where)
5 retailers carry this diamond
Most expensive: £4,037 GBP at NZ Jewellers · As of November 3, 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 L colour (faint-tinted) and SI1 clarity (slightly-included), with a standard cut grade stated by the retailer rather than the lab and certified by GIA 5232867278. Listed at 5 retailers as of November 2, 2026, with prices from £2,291 to £4,037, a £1,746 spread on the same certified stone. NZ Jewellers lists it at £4,037. 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
L
Colour
SI1
Clarity
Good
Cut (retailer stated)

Specifications

Cut (retailer stated)Good
PolishVery Good
SymmetryVery Good
FluorescenceNone
Crown angle41.73°
Pavilion angle40.62°
OriginNatural
Grading LabGIA
CertificateGIA 5232867278
Dimensions10.29 × 5.82 × 4.06 mm
L/W Ratio1.77
Top View
10.29 mm5.82 mm1.51 ctL / SI1
OriginNatural
CutGood
PolishVery Good
SymmetryVery Good
FluorescenceNone
CertificateGIA 5232867278
Side View
Table 56.0%Crown 41.73°GirdlePavilion 40.62°CuletDepth 69.6%

Caratlytics Score

How it works →
B+
Very Good
Strong quality and value balance
Unlock full score analysis
See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 2
Current: £4,037 GBP|Low: £2,253 GBP|High: £4,135 GBP|Avg: £2,663 GBP|-2.4%
NZ Jewellers
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
November 2, 2026
Retailer 5£2,253 GBP
Retailer 6£2,257 GBP
Retailer 2£2,291 GBP
Retailer 4£2,317 GBP
Retailer 3£2,406 GBP
Retailer 7£2,781 GBP
NZ Jewellers£4,037 GBP

29 data points across 7 retailers

5 retailers£2,291 GBP to £4,037 GBP

Retailer 1
-
£2,253 GBP
Price last confirmed 4 days ago
B+
Retailer 2
-
£2,291 GBP
View
B+
Retailer 3
-
£2,317 GBP
View
B+
Retailer 4
-
£2,406 GBP
View
Most Expensive
C
NZ Jewellers
70f3d7b2-3900-41fc-b9c4-a3fa4148648a · Nov 3
£4,037 GBP
$5,403 USD
View
4 more retailers have this diamond
Prices start from £2,291 GBPSave up to £1,746 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+
1.51ct Marquise
£2,291 GBP