Marquise|Natural|GIA

0.40ct J VS1 Marquise Natural Diamond

VG • J/VS1 • GIA 1189719402

Certificate GIA 1189719402

Diamond specifications and retailer prices

From £522 GBP
$700 USD
As of November 1, 2026
Save £300 GBP (37%) vs most expensive(unlock to see where)
14 retailers carry this diamond
Most expensive: £1,224 GBP at MOH London · As of November 2, 2026
View at MOH London

About this 0.4ct natural marquise diamond

This 0.4ct natural marquise sits in the sub-half-carat band, graded J colour (near-colourless) and VS1 clarity (very-slightly-included), with a very-good cut grade stated by the retailer rather than the lab and certified by GIA 1189719402. Listed at 14 retailers as of October 30, 2026, with a 57% 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

0.40
Carat
J
Colour
VS1
Clarity
Very Good
Cut (retailer stated)

Specifications

Cut (retailer stated)Very Good
PolishVery Good
SymmetryVery Good
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 1189719402
Dimensions6.58 × 3.87 × 2.59 mm
L/W Ratio1.70
Culet sizeNone
Key to symbols
Cloud
Top View
6.58 mm3.87 mm0.40 ctJ / VS1
OriginNatural
CutVery Good
PolishVery Good
SymmetryVery Good
FluorescenceNone
CertificateGIA 1189719402
Side View
Table 59.0%CrownGirdle: THK-VTKPavilionCulet: NoneDepth 66.9%

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 1
Current: £1,224 GBP|Low: £522 GBP|High: £1,239 GBP|Avg: £760 GBP
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
November 3, 2026
Retailer 6£522 GBP
Retailer 3£635 GBP
Retailer 4£664 GBP
Retailer 2£750 GBP
Retailer 7£797 GBP
Retailer 5£822 GBP
MOH London£1,224 GBP

45 data points across 7 retailers

14 retailers£522 GBP to £822 GBP

B
Cheapest Retailer
-
£522 GBP
$700 USD
B
Retailer 2
-
£530 GBP
$711 USD
View
B
Retailer 3
-
£530 GBP
$711 USD
View
B
Retailer 4
-
£550 GBP
$738 USD
View
B
Retailer 5
-
£611 GBP
$820 USD
View
B
Retailer 6
-
£611 GBP
$820 USD
View
B
Retailer 7
-
£629 GBP
$843 USD
View
B
Retailer 8
-
£635 GBP
View
B
Retailer 9
-
£664 GBP
$890 USD
View
B
Retailer 10
-
£750 GBP
€958 EUR
View
Retailer 11
-
£797 GBP
A$1,645 AUD
View
Price last confirmed 29 days ago
B
Retailer 12
-
£822 GBP
ZAR 17,810 ZAR
View
Most Expensive
MOH London
640206DE7 · Nov 2
£1,224 GBP
View
Price under review
12 more retailers have this diamond
Prices start from £522 GBPSave up to £300 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
0.40ct Marquise
£522 GBP