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Marquise|Natural|GIA

1.51ct J SI1 Marquise Natural Diamond

GD • J/SI1 • GIA 6532770961

Certificate GIA 6532770961

Diamond specifications and retailer prices

From £4,082 GBP
HK$42,800 HKD
As of November 1, 2026
Save £5,189 GBP (56%) vs most expensive(unlock to see where)
22 retailers carry this diamond
Most expensive: £9,272 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 SI1 clarity (slightly-included), with a standard cut grade stated by the retailer rather than the lab and certified by GIA 6532770961. Listed at 22 retailers as of October 30, 2026, with prices from £4,082 to £9,272, a £5,189 spread on the same certified stone. NZ Jewellers lists it at £9,272. 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
Good
Cut (retailer stated)

Specifications

Cut (retailer stated)Good
PolishExcellent
SymmetryExcellent
FluorescenceMedium
OriginNatural
Grading LabGIA
CertificateGIA 6532770961
Dimensions10.87 × 6.17 × 3.88 mm
L/W Ratio1.76
Top View
10.87 mm6.17 mm1.51 ctJ / SI1
OriginNatural
CutGood
PolishExcellent
SymmetryExcellent
FluorescenceMedium
CertificateGIA 6532770961
Side View
Table 58.0%CrownGirdle: ThickPavilionCulet: NoneDepth 62.8%

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: £4,749 GBP|Low: £4,082 GBP|High: £7,818 GBP|Avg: £5,332 GBP
Retailer 1
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
November 2, 2026
Retailer 14£4,082 GBP
Retailer 4£4,292 GBP
Retailer 3£4,311 GBP
Retailer 6£4,380 GBP
Retailer 7£4,420 GBP
Retailer 5£4,657 GBP
Retailer 1£4,749 GBP
Retailer 11£5,183 GBP
Retailer 9£5,333 GBP
Retailer 2£5,380 GBP
Retailer 8£5,480 GBP
Retailer 10£6,056 GBP
Retailer 13£6,811 GBP
Retailer 12£7,725 GBP

33 data points across 14 retailers

22 retailers£4,082 GBP to £9,272 GBP

B+
Cheapest Retailer
-
£4,082 GBP
HK$42,800 HKD
B+
Retailer 2
-
£4,292 GBP
$5,759 USD
View
Final sale: no returns
Retailer 3
-
£4,311 GBP
$5,785 USD
View
Price last confirmed 8 days ago
B+
Retailer 4
-
£4,380 GBP
$5,878 USD
View
B+
Retailer 5
-
£4,420 GBP
$5,932 USD
View
B
Retailer 6
-
£4,636 GBP
$6,221 USD
View
B
Retailer 7
-
£4,657 GBP
$6,250 USD
View
B
Retailer 8
-
£4,749 GBP
$6,373 USD
View
B
Retailer 9
-
£5,022 GBP
$6,739 USD
View
B
Retailer 10
-
£5,183 GBP
View
B
Retailer 11
-
£5,333 GBP
View
Retailer 12
-
£5,380 GBP
A$11,108 AUD
View
Price last confirmed 11 days ago
B
Retailer 13
-
£5,480 GBP
$7,354 USD
View
B
Retailer 14
-
£5,574 GBP
$7,480 USD
View
B
Retailer 15
-
£5,574 GBP
$7,480 USD
View
B
Retailer 16
-
£5,662 GBP
$7,598 USD
View
B
Retailer 17
-
£5,760 GBP
$7,730 USD
View
B
Retailer 18
-
£6,056 GBP
€7,740 EUR
View
Retailer 19
-
£6,108 GBP
$8,197 USD
View
Price last confirmed 10 days ago
B
Retailer 20
-
£6,811 GBP
ZAR 147,654 ZAR
View
B
Retailer 21
-
£7,725 GBP
View
Most Expensive
C
NZ Jewellers
b2c9cbe7-76d9-455b-81df-321df7a10eb9 · Oct 30
£9,272 GBP
$12,442 USD
View
21 more retailers have this diamond
Prices start from £4,082 GBPSave up to £5,189 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
£4,082 GBP