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Marquise|Natural|GIA

0.40ct H SI2 Marquise Natural Diamond

EX • H/SI2 • GIA 6552411265

Certificate GIA 6552411265

Diamond specifications and retailer prices

From £178 GBP
₹22,696 INR
As of November 1, 2026
Save £396 GBP (69%) vs most expensive(unlock to see where)
13 retailers carry this diamond
Most expensive: £950 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 H colour (near-colourless) and SI2 clarity (slightly-included), with a top-tier cut grade stated by the retailer rather than the lab and certified by GIA 6552411265. Listed at 13 retailers as of October 26, 2026, with a 222% 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
H
Colour
SI2
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishVery Good
SymmetryGood
FluorescenceMedium
OriginNatural
Grading LabGIA
CertificateGIA 6552411265
Dimensions7.07 × 3.85 × 2.45 mm
L/W Ratio1.84
Girdle conditionFaceted
Culet sizeNone
Top View
7.07 mm3.85 mm0.40 ctH / SI2
OriginNatural
CutExcellent
PolishVery Good
SymmetryGood
FluorescenceMedium
CertificateGIA 6552411265
Side View
Table 55.0%CrownGirdle: STK-VTKPavilionCulet: NoneDepth 63.7%

Caratlytics Score

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

Price History

Last verified: Nov 1
Current: £950 GBP|Low: £177 GBP|High: £950 GBP|Avg: £359 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
November 1, 2026
Retailer 2£178 GBP
Retailer 13£210 GBP
Retailer 3£248 GBP
Retailer 5£249 GBP
Retailer 12£268 GBP
Retailer 6£275 GBP
Retailer 11£276 GBP
Retailer 7£323 GBP
Retailer 4£332 GBP
Retailer 14£334 GBP
Retailer 9£340 GBP
Retailer 8£462 GBP
Retailer 10£573 GBP
NZ Jewellers£950 GBP

38 data points across 14 retailers

13 retailers£178 GBP to £573 GBP

A
Cheapest Retailer
-
£178 GBP
₹22,696 INR
A
Retailer 2
-
£210 GBP
HK$2,200 HKD
View
A
Retailer 3
-
£248 GBP
$332 USD
View
B+
Retailer 4
-
£249 GBP
$334 USD
View
A
Retailer 5
-
£268 GBP
SGD 485 SGD
View
B+
Retailer 6
-
£276 GBP
$370 USD
View
B+
Retailer 7
-
£323 GBP
View
B+
Retailer 8
-
£332 GBP
$445 USD
View
B+
Retailer 9
-
£334 GBP
$447 USD
View
B+
Retailer 10
-
£340 GBP
View
B
Retailer 11
-
£462 GBP
€590 EUR
View
B
Retailer 12
-
£573 GBP
View
Most Expensive
NZ Jewellers
24e00c06-50d5-4d30-8d27-65f621053dab · Oct 30
£950 GBP
$1,273 USD
View
Price under review
12 more retailers have this diamond
Prices start from £178 GBPSave up to £396 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
£178 GBP