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Marquise|Natural|GIA

1.51ct L SI1 Marquise Natural Diamond

GD • L/SI1 • GIA 3525877639

Certificate GIA 3525877639

Diamond specifications and retailer prices

From £2,394 GBP
As of November 7, 2026
Save £1,921 GBP (45%) vs most expensive(unlock to see where)
5 retailers carry this diamond
Most expensive: £4,315 GBP at NZ Jewellers · As of November 7, 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 3525877639. Listed at 5 retailers as of November 7, 2026, with prices from £2,394 to £4,315, a £1,921 spread on the same certified stone. NZ Jewellers lists it at £4,315. 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
PolishExcellent
SymmetryVery Good
FluorescenceStrong
Crown angle32.77°
Pavilion angle36.64°
OriginNatural
Grading LabGIA
CertificateGIA 3525877639
Dimensions11.09 × 6.23 × 3.43 mm
L/W Ratio1.78
Top View
11.09 mm6.23 mm1.51 ctL / SI1
OriginNatural
CutGood
PolishExcellent
SymmetryVery Good
FluorescenceStrong
CertificateGIA 3525877639
Side View
Table 65.0%Crown 32.77°GirdlePavilion 36.64°CuletDepth 55.1%

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 7
Current: £4,315 GBP|Low: £2,394 GBP|High: £4,484 GBP|Avg: £2,910 GBP|-3.8%
NZ Jewellers
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
November 7, 2026
Retailer 5£2,394 GBP
Retailer 2£2,451 GBP
Retailer 4£2,477 GBP
Retailer 3£2,572 GBP
Retailer 6£2,780 GBP
NZ Jewellers£4,315 GBP

32 data points across 6 retailers

5 retailers£2,394 GBP to £4,315 GBP

B+
Cheapest Retailer
-
£2,394 GBP
B+
Retailer 2
-
£2,451 GBP
View
B+
Retailer 3
-
£2,477 GBP
View
B
Retailer 4
-
£2,572 GBP
View
Most Expensive
C
NZ Jewellers
d78fddfd-d9e2-4dfe-97db-615100f0e0d6 · Nov 7
£4,315 GBP
$5,776 USD
View
4 more retailers have this diamond
Prices start from £2,394 GBPSave up to £1,921 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
£2,394 GBP