Marquise|Natural|GIA

0.90ct D SI1 Marquise Natural Diamond

VG • D/SI1 • GIA 6551425340

Certificate GIA 6551425340

Diamond specifications and retailer prices

From $2,534 USD
A$3,898 AUD
As of October 31, 2026
10 retailers carry this diamond
Most expensive: $4,797 USD at NZ Jewellers · As of September 25, 2026
View at NZ Jewellers

About this 0.9ct natural marquise diamond

This 0.9ct natural marquise sits in the just-under-one-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 6551425340. Listed at 10 retailers as of October 31, 2026. 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

0.90
Carat
D
Color
SI1
Clarity
Very Good
Cut (retailer stated)

Specifications

Cut (retailer stated)Very Good
PolishVery Good
SymmetryVery Good
FluorescenceMedium
OriginNatural
Grading LabGIA
CertificateGIA 6551425340
Dimensions9.25 × 4.98 × 3.28 mm
L/W Ratio1.86
Girdle conditionFaceted
Top View
9.25 mm4.98 mm0.90 ctD / SI1
OriginNatural
CutVery Good
PolishVery Good
SymmetryVery Good
FluorescenceMedium
CertificateGIA 6551425340
Side View
Table 60.0%CrownGirdle: STK-VTKPavilionCulet: NoneDepth 65.7%

Caratlytics Score

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B+
Very Good
Strong quality and value balance
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Price History

Last verified: Oct 31
Current: $2,047 USD|Low: $1,651 USD|High: $4,251 USD|Avg: $2,527 USD|-14.6%
Retailer 1
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
October 9, 2026
Retailer 14$1,651 USD
Retailer 10$1,990 USD
Retailer 1$2,047 USD
Retailer 15$2,099 USD
Retailer 4$2,128 USD
Retailer 8$2,183 USD
Retailer 3$2,317 USD
Retailer 2$2,349 USD
Retailer 9$2,350 USD
Retailer 7$2,534 USD
Retailer 13$2,768 USD
Retailer 12$2,897 USD
Retailer 5$3,273 USD
Retailer 6$3,467 USD
Retailer 11$4,161 USD

20 data points across 15 retailers

10 retailers

Retailer 1
-
$1,651 USD
HK$12,900 HKD
Price last confirmed 24 days ago
Retailer 2
-
$2,016 USD
A$3,101 AUD
View
Price last confirmed 24 days ago
Retailer 3
-
$2,047 USD
€1,949 EUR
View
Price last confirmed 23 days ago
Retailer 4
-
$2,128 USD
View
Price last confirmed 31 days ago
Retailer 5
-
$2,317 USD
SGD 3,131 SGD
View
Price last confirmed 24 days ago
B+
Retailer 6
-
$2,534 USD
A$3,898 AUD
View
Retailer 7
-
$2,897 USD
A$4,457 AUD
View
Price last confirmed 24 days ago
Retailer 8
-
$3,273 USD
ZAR 52,882 ZAR
View
Price last confirmed 37 days ago
Retailer 9
-
$4,161 USD
£3,276 GBP
View
Price last confirmed 24 days ago
Most Expensive
NZ Jewellers
b1bc2089-8b64-401c-9de4-6c8ef54966fb · Sep 25
$4,797 USD
View
Price last confirmed 37 days ago
9 more retailers have this diamond
Prices start from $2,534 USD

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+
0.90ct Marquise
$2,534 USD