CaratHunter
Plans
Marquise|Natural|GIA

1.51ct J SI2 Marquise Natural Diamond

GD • J/SI2 • GIA 6565542432

Certificate GIA 6565542432

Diamond specifications and retailer prices

From £3,996 GBP
SGD 7,246 SGD
As of November 2, 2026
Save £2,566 GBP (39%) vs most expensive(unlock to see where)
12 retailers carry this diamond
Most expensive: £7,298 GBP at Wholesale Diamonds Direct · As of October 27, 2026
View at Wholesale Diamonds Direct

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 standard cut grade stated by the retailer rather than the lab and certified by GIA 6565542432. Listed at 12 retailers as of November 2, 2026, with a 64% spread between the cheapest and most expensive listing. That is exactly the kind of price-discovery gap Carat Hunter was built to surface. 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
SI2
Clarity
Good
Cut (retailer stated)

Specifications

Cut (retailer stated)Good
PolishExcellent
SymmetryExcellent
FluorescenceFaint
Crown angle43.59°
Pavilion angle41.52°
OriginNatural
Grading LabGIA
CertificateGIA 6565542432
Dimensions10.62 × 5.82 × 3.93 mm
L/W Ratio1.82
Culet sizeNone
Top View
10.62 mm5.82 mm1.51 ctJ / SI2
OriginNatural
CutGood
PolishExcellent
SymmetryExcellent
FluorescenceFaint
CertificateGIA 6565542432
Side View
Table 60.0%Crown 43.59°Girdle: THK-VTKPavilion 41.52°Culet: NDepth 67.5%

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 2
Current: £5,091 GBP|Low: £3,996 GBP|High: £7,298 GBP|Avg: £4,987 GBP|+0.6%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Wholesale Diamonds Direct
November 2, 2026
Retailer 2£3,996 GBP
Retailer 6£4,229 GBP
Retailer 5£4,248 GBP
Retailer 9£4,325 GBP
Retailer 4£4,506 GBP
Retailer 3£4,523 GBP
Retailer 10£5,047 GBP
Retailer 7£5,070 GBP
Retailer 1£5,091 GBP
Retailer 8£6,561 GBP
Wholesale Diamonds Direct£7,298 GBP

23 data points across 11 retailers

12 retailers£3,996 GBP to £6,561 GBP

B+
Cheapest Retailer
-
£3,996 GBP
SGD 7,246 SGD
B+
Retailer 2
-
£4,160 GBP
SGD 7,544 SGD
View
B+
Retailer 3
-
£4,229 GBP
$5,675 USD
View
Retailer 4
-
£4,248 GBP
$5,700 USD
View
Price last confirmed 8 days ago
B
Retailer 5
-
£4,325 GBP
$5,804 USD
View
B
Retailer 6
-
£4,506 GBP
$6,047 USD
View
B
Retailer 7
-
£4,523 GBP
View
B
Retailer 8
-
£5,047 GBP
$6,773 USD
View
B
Retailer 9
-
£5,070 GBP
$6,804 USD
View
B
Retailer 10
-
£5,091 GBP
€6,506 EUR
View
C
Retailer 11
-
£6,561 GBP
$8,805 USD
View
Most Expensive
C
Wholesale Diamonds Direct
584564542 · Oct 27
£7,298 GBP
$9,793 USD
View
Price last confirmed 7 days ago
11 more retailers have this diamond
Prices start from £3,996 GBPSave up to £2,566 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
£3,996 GBP