Marquise|Natural|GIA

0.90ct D SI1 Marquise Natural Diamond

VG • D/SI1 • GIA 6551425340

Certificate GIA 6551425340

Diamond specifications and retailer prices

From HK$19,880 HKD
A$3,898 AUD
As of November 2, 2026
10 retailers carry this diamond
Most expensive: HK$37,638 HKD 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 November 2, 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
Colour
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

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: HK$16,058 HKD|Low: HK$12,955 HKD|High: HK$33,351 HKD|Avg: HK$19,858 HKD|-0.4%
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 14HK$12,955 HKD
Retailer 10HK$15,614 HKD
Retailer 1HK$16,058 HKD
Retailer 15HK$16,469 HKD
Retailer 4HK$16,697 HKD
Retailer 8HK$17,124 HKD
Retailer 3HK$18,179 HKD
Retailer 2HK$18,433 HKD
Retailer 9HK$18,438 HKD
Retailer 7HK$19,880 HKD
Retailer 13HK$21,716 HKD
Retailer 12HK$22,728 HKD
Retailer 5HK$25,683 HKD
Retailer 6HK$27,202 HKD
Retailer 11HK$32,644 HKD

19 data points across 15 retailers

10 retailers

Retailer 1
-
HK$12,955 HKD
Price last confirmed 25 days ago
Retailer 2
-
HK$15,815 HKD
A$3,101 AUD
View
Price last confirmed 25 days ago
Retailer 3
-
HK$16,058 HKD
€1,949 EUR
View
Price last confirmed 24 days ago
Retailer 4
-
HK$16,697 HKD
$2,128 USD
View
Price last confirmed 32 days ago
Retailer 5
-
HK$18,179 HKD
SGD 3,131 SGD
View
Price last confirmed 25 days ago
B+
Retailer 6
-
HK$19,880 HKD
A$3,898 AUD
View
Retailer 7
-
HK$22,728 HKD
A$4,457 AUD
View
Price last confirmed 25 days ago
Retailer 8
-
HK$25,683 HKD
ZAR 52,882 ZAR
View
Price last confirmed 38 days ago
Retailer 9
-
HK$32,644 HKD
£3,276 GBP
View
Price last confirmed 25 days ago
Most Expensive
NZ Jewellers
b1bc2089-8b64-401c-9de4-6c8ef54966fb · Sep 25
HK$37,638 HKD
$4,797 USD
View
Price last confirmed 38 days ago
9 more retailers have this diamond
Prices start from HK$19,880 HKD

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
HK$19,880 HKD