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Marquise|Natural|GIA

1.51ct J SI1 Marquise Natural Diamond

GD • J/SI1 • GIA 6561369361

Certificate GIA 6561369361

Diamond specifications and retailer prices

From £5,513 GBP
SGD 9,998 SGD
As of November 3, 2026
Save £1,216 GBP (18%) vs most expensive(unlock to see where)
8 retailers carry this diamond
Most expensive: £6,729 GBP at Jared · As of November 2, 2026
View at Jared

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 6561369361. Listed at 8 retailers as of November 2, 2026, with prices from £5,513 to £6,729, a £1,216 spread on the same certified stone. Jared lists it at £6,729. 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
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 6561369361
Dimensions10.88 × 5.89 × 3.91 mm
L/W Ratio1.85
Culet sizeNone
Key to symbols
Crystal, Cloud, Feather, Needle, Natural
Top View
10.88 mm5.89 mm1.51 ctJ / SI1
OriginNatural
CutGood
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 6561369361
Side View
Table 59.0%CrownGirdle: THK-VTKPavilionCulet: NoneDepth 66.3%

Caratlytics Score

How it works →
B
Good
Decent quality, room for better deals
Unlock full score analysis
See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 3
Current: £6,729 GBP|Low: £4,829 GBP|High: £6,729 GBP|Avg: £5,583 GBP
Jared
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
November 3, 2026
Retailer 8£4,829 GBP
Retailer 7£5,513 GBP
Retailer 4£5,755 GBP
Retailer 2£5,840 GBP
Retailer 5£6,112 GBP
Retailer 3£6,513 GBP
Retailer 6£6,513 GBP
Jared£6,729 GBP

21 data points across 8 retailers

8 retailers£5,513 GBP to £6,729 GBP

Retailer 1
-
£4,829 GBP
$6,480 USD
Price last confirmed 15 days ago
B
Retailer 2
-
£5,513 GBP
SGD 9,998 SGD
View
B
Retailer 3
-
£5,755 GBP
$7,723 USD
View
B
Retailer 4
-
£5,840 GBP
View
B
Retailer 5
-
£6,112 GBP
$8,202 USD
View
C
Retailer 6
-
£6,513 GBP
$8,740 USD
View
C
Retailer 7
-
£6,513 GBP
$8,740 USD
View
Most Expensive
C
Jared
160279902 · Nov 2
£6,729 GBP
$9,030 USD
View
7 more retailers have this diamond
Prices start from £5,513 GBPSave up to £1,216 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
£5,513 GBP