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Marquise|Natural|GIA

1.51ct J SI2 Marquise Natural Diamond

EX • J/SI2 • GIA 6552470809

Certificate GIA 6552470809

Diamond specifications and retailer prices

From £4,537 GBP
$6,088 USD
As of November 1, 2026
Save £5,260 GBP (54%) vs most expensive(unlock to see where)
17 retailers carry this diamond
Most expensive: £9,797 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 J colour (near-colourless) and SI2 clarity (slightly-included), with a top-tier cut grade stated by the retailer rather than the lab and certified by GIA 6552470809. Listed at 17 retailers as of October 30, 2026, with prices from £4,537 to £9,797, a £5,260 spread on the same certified stone. NZ Jewellers lists it at £9,797. SI-grade stones are eye-clean roughly 60 to 70% of the time at this carat range. Check the inclusion plot on the cert and ask the retailer for high-resolution video before buying.

The 4Cs

1.51
Carat
J
Colour
SI2
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryVery Good
FluorescenceNone
Crown angle34.95°
Pavilion angle42.18°
OriginNatural
Grading LabGIA
CertificateGIA 6552470809
Dimensions11.17 × 6.10 × 3.80 mm
L/W Ratio1.83
Girdle conditionVery Thick
Culet sizeNone
Key to symbols
Crystal, Feather, Cloud, Indented Natural
Top View
11.17 mm6.10 mm1.51 ctJ / SI2
OriginNatural
CutExcellent
PolishExcellent
SymmetryVery Good
FluorescenceNone
CertificateGIA 6552470809
Side View
Table 65.0%Crown 34.95°Girdle: STK-VTKPavilion 42.18°Culet: NoneDepth 62.3%

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: £9,797 GBP|Low: £4,628 GBP|High: £9,797 GBP|Avg: £6,120 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
Retailer 15
Retailer 16
Retailer 17
November 2, 2026
Retailer 12£4,628 GBP
Retailer 3£4,866 GBP
Retailer 5£4,898 GBP
Retailer 13£4,939 GBP
Retailer 6£5,306 GBP
Retailer 16£5,388 GBP
Retailer 10£5,477 GBP
Retailer 4£5,599 GBP
Retailer 15£5,872 GBP
Retailer 17£5,872 GBP
Retailer 14£6,066 GBP
Retailer 7£6,123 GBP
Retailer 2£6,399 GBP
Retailer 8£6,453 GBP
Retailer 9£6,983 GBP
Retailer 11£8,164 GBP
NZ Jewellers£9,797 GBP

39 data points across 17 retailers

17 retailers£4,537 GBP to £9,797 GBP

B+
Cheapest Retailer
-
£4,537 GBP
$6,088 USD
B+
Retailer 2
-
£4,628 GBP
$6,210 USD
View
B+
Retailer 3
-
£4,866 GBP
CA$9,069 CAD
View
B+
Retailer 4
-
£4,898 GBP
$6,573 USD
View
B
Retailer 5
-
£4,939 GBP
$6,628 USD
View
B
Retailer 6
-
£5,306 GBP
$7,121 USD
View
B
Retailer 7
-
£5,388 GBP
$7,231 USD
View
B+
Retailer 8
-
£5,477 GBP
View
B
Retailer 9
-
£5,599 GBP
$7,514 USD
View
B
Retailer 10
-
£5,872 GBP
$7,880 USD
View
B
Retailer 11
-
£5,872 GBP
$7,880 USD
View
B
Retailer 12
-
£6,066 GBP
$8,140 USD
View
B
Retailer 13
-
£6,123 GBP
$8,217 USD
View
B
Retailer 14
-
£6,399 GBP
€8,178 EUR
View
Retailer 15
-
£6,453 GBP
$8,660 USD
View
Price last confirmed 10 days ago
B
Retailer 16
-
£8,164 GBP
View
Most Expensive
C
NZ Jewellers
59f719e2-1b58-4986-80a0-1449147ab945 · Oct 30
£9,797 GBP
$13,147 USD
View
16 more retailers have this diamond
Prices start from £4,537 GBPSave up to £5,260 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
£4,537 GBP