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Marquise|Natural|GIA

0.37ct H SI2 Marquise Natural Diamond

GD • H/SI2 • GIA 5566353940

Certificate GIA 5566353940

Diamond specifications and retailer prices

From $407 AUD
$285 USD
As of November 1, 2026
Save $143 AUD (26%) vs most expensive(unlock to see where)
2 retailers carry this diamond
Most expensive: $550 AUD at 77 Diamonds · As of November 3, 2026
View at 77 Diamonds

About this 0.37ct natural marquise diamond

This 0.37ct natural marquise sits in the sub-half-carat band, graded H colour (near-colourless) and SI2 clarity (slightly-included), with a standard cut grade stated by the retailer rather than the lab and certified by GIA 5566353940. Listed at 2 retailers as of November 1, 2026, with prices from $407 to $550, a $143 spread on the same certified stone. 77 Diamonds lists it at $550. 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

0.37
Carat
H
Colour
SI2
Clarity
Good
Cut (retailer stated)

Specifications

Cut (retailer stated)Good
PolishExcellent
SymmetryVery Good
FluorescenceFaint
OriginNatural
Grading LabGIA
CertificateGIA 5566353940
Dimensions7.06 × 3.76 × 2.42 mm
L/W Ratio1.88
Culet sizeNone
Key to symbols
Crystal, Feather
Top View
7.06 mm3.76 mm0.37 ctH / SI2
OriginNatural
CutGood
PolishExcellent
SymmetryVery Good
FluorescenceFaint
CertificateGIA 5566353940
Side View
Table 61.0%CrownGirdle: STK-VTKPavilionCuletDepth 64.3%

Caratlytics Score

How it works →
B+
Very Good
Strong quality and value balance
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See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 1
Current: $550 AUD|Low: $407 AUD|High: $555 AUD|Avg: $476 AUD|+4.4%
77 Diamonds
Retailer 2
November 3, 2026
Retailer 2$407 AUD
77 Diamonds$550 AUD

35 data points across 2 retailers

2 retailers$407 AUD to $550 AUD

B+
Cheapest Retailer
-
$407 AUD
$285 USD
Most Expensive
B
77 Diamonds
MQCPNKPUV5HS · Nov 3
$550 AUD
£303 GBP
View
1 more retailer has this diamond
Prices start from $407 AUDSave up to $143 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.

B+
0.37ct Marquise
$407 AUD