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Marquise|Natural|GIA

1.54ct D SI1 Marquise Natural Diamond

VG • D/SI1 • GIA 2131419092

Certificate GIA 2131419092

Diamond specifications and retailer prices

From $19,981 AUD
£11,026 GBP
As of November 2, 2026
Save $8,962 AUD (31%) vs most expensive(unlock to see where)
3 retailers carry this diamond
Most expensive: $28,944 AUD at MOH London · As of November 2, 2026
View at MOH London

About this 1.54ct natural marquise diamond

This 1.54ct natural marquise sits in the one-and-a-half to two carat band, graded D colour (colourless) and SI1 clarity (slightly-included), with a very-good cut grade stated by the retailer rather than the lab and certified by GIA 2131419092. Listed at 3 retailers as of November 2, 2026, with prices from $19,981 to $28,944, a $8,962 spread on the same certified stone. MOH London lists it at $28,944. 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

1.54
Carat
D
Colour
SI1
Clarity
Very Good
Cut (retailer stated)

Specifications

Cut (retailer stated)Very Good
PolishVery Good
SymmetryVery Good
FluorescenceFaint
OriginNatural
Grading LabGIA
CertificateGIA 2131419092
Dimensions12.51 × 5.78 × 3.65 mm
L/W Ratio2.16
Culet sizeNone
Top View
12.51 mm5.78 mm1.54 ctD / SI1
OriginNatural
CutVery Good
PolishVery Good
SymmetryVery Good
FluorescenceFaint
CertificateGIA 2131419092
Side View
Table 61.0%CrownGirdle: THN-THKPavilionCulet: NoneDepth 63.1%

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 2
Current: $28,944 AUD|Low: $19,815 AUD|High: $29,294 AUD|Avg: $24,221 AUD|-0.1%
MOH London
Retailer 2
Retailer 3
November 2, 2026
Retailer 3$19,981 AUD
Retailer 2$23,346 AUD
MOH London$28,944 AUD

41 data points across 3 retailers

3 retailers$19,981 AUD to $28,944 AUD

B+
Cheapest Retailer
-
$19,981 AUD
£11,026 GBP
B
Retailer 2
-
$23,346 AUD
€15,582 EUR
View
Most Expensive
B
MOH London
743D2063B · Nov 2
$28,944 AUD
£15,972 GBP
View
2 more retailers have this diamond
Prices start from $19,981 AUDSave up to $8,962 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+
1.54ct Marquise
$19,981 AUD