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Marquise|Natural|GIA

0.40ct G SI1 Marquise Natural Diamond

EX • G/SI1 • GIA 2567201239

Certificate GIA 2567201239

Diamond specifications and retailer prices

From £195 GBP
₹24,872 INR
As of November 2, 2026
Save £474 GBP (71%) vs most expensive(unlock to see where)
20 retailers carry this diamond
Most expensive: £1,110 GBP at NZ Jewellers · As of October 30, 2026
View at NZ Jewellers

About this 0.4ct natural marquise diamond

This 0.4ct natural marquise sits in the sub-half-carat band, graded G colour (near-colourless) and SI1 clarity (slightly-included), with a top-tier cut grade stated by the retailer rather than the lab and certified by GIA 2567201239. Listed at 20 retailers as of November 2, 2026, with a 244% spread between the cheapest and most expensive listing. That is exactly the kind of price-discovery gap Carat Hunter was built to surface. 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

0.40
Carat
G
Colour
SI1
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryVery Good
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 2567201239
Dimensions7.27 × 3.80 × 2.31 mm
L/W Ratio1.91
Girdle conditionFaceted
Culet sizeNone
Key to symbols
Feather, Cloud, Crystal, Cavity
Top View
7.27 mm3.80 mm0.40 ctG / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryVery Good
FluorescenceNone
CertificateGIA 2567201239
Side View
Table 62.0%CrownGirdle: THN-VTKPavilionCulet: NoneDepth 60.9%

Caratlytics Score

How it works →
A
Excellent
Excellent quality and great value
Unlock full score analysis
See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 2
Current: £1,110 GBP|Low: £195 GBP|High: £1,110 GBP|Avg: £432 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
November 2, 2026
Retailer 2£195 GBP
Retailer 13£224 GBP
Retailer 11£235 GBP
Retailer 7£290 GBP
Retailer 6£312 GBP
Retailer 14£314 GBP
Retailer 4£323 GBP
Retailer 10£378 GBP
Retailer 5£390 GBP
Retailer 3£397 GBP
Retailer 15£449 GBP
Retailer 9£527 GBP
Retailer 8£586 GBP
Retailer 12£669 GBP
NZ Jewellers£1,110 GBP

24 data points across 15 retailers

20 retailers£195 GBP to £669 GBP

A
Cheapest Retailer
-
£195 GBP
₹24,872 INR
A
Retailer 2
-
£224 GBP
$300 USD
View
A
Retailer 3
-
£235 GBP
$315 USD
View
A
Retailer 4
-
£268 GBP
$359 USD
View
Final sale: no returns
A
Retailer 5
-
£290 GBP
$389 USD
View
A
Retailer 6
-
£312 GBP
$419 USD
View
A
Retailer 7
-
£314 GBP
$422 USD
View
B+
Retailer 8
-
£323 GBP
$434 USD
View
B+
Retailer 9
-
£333 GBP
$447 USD
View
B+
Retailer 10
-
£378 GBP
View
B+
Retailer 11
-
£387 GBP
$520 USD
View
B+
Retailer 12
-
£390 GBP
$523 USD
View
B+
Retailer 13
-
£397 GBP
View
B+
Retailer 14
-
£449 GBP
ZAR 9,738 ZAR
View
B+
Retailer 15
-
£451 GBP
$605 USD
View
Retailer 16
-
£466 GBP
A$962 AUD
View
Price last confirmed 29 days ago
B
Retailer 17
-
£527 GBP
€674 EUR
View
B
Retailer 18
-
£586 GBP
View
B
Retailer 19
-
£669 GBP
View
Most Expensive
NZ Jewellers
2f375d12-f241-4fb3-9f5c-78c5f986d4d2 · Oct 30
£1,110 GBP
$1,490 USD
View
Price under review
19 more retailers have this diamond
Prices start from £195 GBPSave up to £474 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.

A
0.40ct Marquise
£195 GBP