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Marquise|Natural|GIA

1.51ct J SI1 Marquise Natural Diamond

VG • J/SI1 • GIA 3545622871

Certificate GIA 3545622871

Diamond specifications and retailer prices

From £4,821 GBP
$6,470 USD
As of November 1, 2026
Save £3,888 GBP (45%) vs most expensive(unlock to see where)
14 retailers carry this diamond
Most expensive: £8,710 GBP at MOH London · As of October 29, 2026
View at MOH London

About this 1.51ct natural marquise diamond

This 1.51ct natural marquise sits in the one-and-a-half to two carat band, graded J colour (near-colourless) and SI1 clarity (slightly-included), with a very-good cut grade stated by the retailer rather than the lab and certified by GIA 3545622871. Listed at 14 retailers as of October 29, 2026, with prices from £4,821 to £8,710, a £3,888 spread on the same certified stone. MOH London lists it at £8,710. 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
J
Colour
SI1
Clarity
Very Good
Cut (retailer stated)

Specifications

Cut (retailer stated)Very Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle41.19°
Pavilion angle39.93°
OriginNatural
Grading LabGIA
CertificateGIA 3545622871
Dimensions10.83 × 5.85 × 3.83 mm
L/W Ratio1.85
Top View
10.83 mm5.85 mm1.51 ctJ / SI1
OriginNatural
CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 3545622871
Side View
Table 59.0%Crown 41.19°Girdle: STK-VTKPavilion 39.93°Culet: NoneDepth 65.5%

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 1
Current: £8,710 GBP|Low: £2,983 GBP|High: £8,710 GBP|Avg: £5,658 GBP
MOH London
Retailer 2
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Retailer 11
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Retailer 19
November 2, 2026
Retailer 8£2,983 GBP
Retailer 10£3,958 GBP
Retailer 17£4,821 GBP
Retailer 19£4,912 GBP
Retailer 9£5,002 GBP
Retailer 15£5,131 GBP
Retailer 4£5,201 GBP
Retailer 5£5,242 GBP
Retailer 12£5,819 GBP
Retailer 14£5,952 GBP
Retailer 6£6,215 GBP
Retailer 18£6,215 GBP
Retailer 3£6,416 GBP
Retailer 2£6,429 GBP
Retailer 7£6,497 GBP
Retailer 16£6,847 GBP
Retailer 11£7,394 GBP
Retailer 13£7,637 GBP
MOH London£8,710 GBP

6 data points across 19 retailers

14 retailers£4,821 GBP to £8,710 GBP

B+
Cheapest Retailer
-
£4,821 GBP
$6,470 USD
B
Retailer 2
-
£4,912 GBP
$6,591 USD
View
B
Retailer 3
-
£5,131 GBP
CA$9,563 CAD
View
B
Retailer 4
-
£5,201 GBP
$6,980 USD
View
B
Retailer 5
-
£5,242 GBP
$7,034 USD
View
B
Retailer 6
-
£5,819 GBP
View
B
Retailer 7
-
£5,952 GBP
$7,987 USD
View
B
Retailer 8
-
£6,162 GBP
$8,269 USD
View
B
Retailer 9
-
£6,215 GBP
$8,340 USD
View
B
Retailer 10
-
£6,215 GBP
$8,340 USD
View
B
Retailer 11
-
£6,416 GBP
$8,610 USD
View
B
Retailer 12
-
£6,429 GBP
€8,216 EUR
View
B
Retailer 13
-
£7,637 GBP
ZAR 165,565 ZAR
View
Most Expensive
C
MOH London
4CF3E6899 · Oct 29
£8,710 GBP
View
13 more retailers have this diamond
Prices start from £4,821 GBPSave up to £3,888 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
£4,821 GBP