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Marquise|Natural|GIA

0.40ct H SI1 Marquise Natural Diamond

VG • H/SI1 • GIA 2556340673

Certificate GIA 2556340673

Diamond specifications and retailer prices

From $529 AUD
SGD 501 SGD
As of October 31, 2026
Save $394 AUD (43%) vs most expensive(unlock to see where)
8 retailers carry this diamond
Most expensive: $929 AUD at Torres Jewel Co · As of October 4, 2026
View at Torres Jewel Co

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 SI1 clarity (slightly-included), with a very-good cut grade stated by the retailer rather than the lab and certified by GIA 2556340673. Listed at 8 retailers as of October 31, 2026, with a 74% 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
H
Colour
SI1
Clarity
Very Good
Cut (retailer stated)

Specifications

Cut (retailer stated)Very Good
PolishVery Good
SymmetryVery Good
FluorescenceNone
Crown angle36°
OriginNatural
Grading LabGIA
CertificateGIA 2556340673
Dimensions7.81 × 3.70 × 2.37 mm
L/W Ratio2.11
Culet sizeNone
Key to symbols
Crystal
Top View
7.81 mm3.70 mm0.40 ctH / SI1
OriginNatural
CutVery Good
PolishVery Good
SymmetryVery Good
FluorescenceNone
CertificateGIA 2556340673
Side View
Table 56.0%Crown 36°Girdle: STK-VTKPavilionCulet: NDepth 64.2%

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: Oct 31
Current: $923 AUD|Low: $529 AUD|High: $2,223 AUD|Avg: $927 AUD|+0.5%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Torres Jewel Co
November 2, 2026
Retailer 7$529 AUD
Retailer 8$634 AUD
Retailer 2$743 AUD
Retailer 3$768 AUD
Retailer 6$779 AUD
Retailer 5$882 AUD
Retailer 1$923 AUD
Torres Jewel Co$929 AUD
Retailer 4$2,180 AUD

45 data points across 9 retailers

8 retailers$529 AUD to $923 AUD

A
Cheapest Retailer
-
$529 AUD
SGD 501 SGD
B
Retailer 2
-
$743 AUD
£410 GBP
View
B
Retailer 3
-
$768 AUD
$538 USD
View
B
Retailer 4
-
$779 AUD
£430 GBP
View
B
Retailer 5
-
$882 AUD
ZAR 9,983 ZAR
View
B
Retailer 6
-
$923 AUD
€616 EUR
View
Most Expensive
Torres Jewel Co
25360319 · Oct 4
$929 AUD
View
Price last confirmed 28 days ago
6 more retailers have this diamond
Prices start from $529 AUDSave up to $394 AUD

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
$529 AUD