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Marquise|Natural|GIA

0.90ct J SI1 Marquise Natural Diamond

EX • J/SI1 • GIA 6551992390

Certificate GIA 6551992390

Diamond specifications and retailer prices

From $1,788 CAD
HK$10,000 HKD
As of October 31, 2026
Save $2,408 CAD (57%) vs most expensive(unlock to see where)
19 retailers carry this diamond
Most expensive: $5,811 CAD at NZ Jewellers · As of October 17, 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 J colour (near-colourless) and SI1 clarity (slightly-included), with a top-tier cut grade stated by the retailer rather than the lab and certified by GIA 6551992390. Listed at 19 retailers as of October 29, 2026, with a 135% spread between the cheapest and most expensive listing. That is exactly the kind of price-discovery gap Carat Hunter was built to surface. SI-grade stones are eye-clean roughly 60 to 70% of the time at this carat range. Check the inclusion plot on the cert and ask the retailer for high-resolution video before buying.

The 4Cs

0.90
Carat
J
Color
SI1
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryVery Good
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 6551992390
Dimensions9.74 × 5.07 × 3.12 mm
L/W Ratio1.92
Girdle conditionFaceted
Culet sizeNone
Key to symbols
Feather
Top View
9.74 mm5.07 mm0.90 ctJ / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryVery Good
FluorescenceNone
CertificateGIA 6551992390
Side View
Table 61.0%CrownGirdle: STK-THKPavilionCulet: NoneDepth 61.6%

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: $1,863 CAD|Low: $1,770 CAD|High: $4,242 CAD|Avg: $2,731 CAD|-2.8%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
October 31, 2026
Retailer 4$1,788 CAD
Retailer 1$1,863 CAD
Retailer 10$2,197 CAD
Retailer 9$2,210 CAD
Retailer 2$2,483 CAD
Retailer 11$2,573 CAD
Retailer 6$2,670 CAD
Retailer 3$3,122 CAD
Retailer 7$3,253 CAD
Retailer 5$3,514 CAD
Retailer 8$4,196 CAD

33 data points across 11 retailers

19 retailers$1,788 CAD to $4,196 CAD

A
Cheapest Retailer
-
$1,788 CAD
HK$10,000 HKD
A
Retailer 2
-
$1,863 CAD
₹126,991 INR
View
B+
Retailer 3
-
$2,197 CAD
$1,573 USD
View
Final sale: no returns
B+
Retailer 4
-
$2,210 CAD
SGD 2,138 SGD
View
B+
Retailer 5
-
$2,252 CAD
$1,612 USD
View
B+
Retailer 6
-
$2,256 CAD
$1,615 USD
View
B+
Retailer 7
-
$2,291 CAD
$1,640 USD
View
Retailer 8
-
$2,382 CAD
$1,705 USD
View
Price last confirmed 14 days ago
Retailer 9
-
$2,382 CAD
$1,705 USD
View
Price last confirmed 16 days ago
B
Retailer 10
-
$2,483 CAD
SGD 2,402 SGD
View
Retailer 11
-
$2,492 CAD
$1,784 USD
View
Price last confirmed 16 days ago
B+
Retailer 12
-
$2,573 CAD
$1,842 USD
View
B
Retailer 13
-
$2,670 CAD
£1,505 GBP
View
Retailer 14
-
$2,749 CAD
$1,968 USD
View
Price last confirmed 14 days ago
Retailer 15
-
$3,122 CAD
A$3,438 AUD
View
Price last confirmed 27 days ago
B
Retailer 16
-
$3,253 CAD
€2,218 EUR
View
B
Retailer 17
-
$3,514 CAD
ZAR 40,636 ZAR
View
B
Retailer 18
-
$4,196 CAD
£2,365 GBP
View
Most Expensive
NZ Jewellers
5e747eff-1b15-4ef9-ac3c-25cc03d9706c · Oct 17
$5,811 CAD
$4,160 USD
View
Price last confirmed 15 days ago
18 more retailers have this diamond
Prices start from $1,788 CADSave up to $2,408 CAD

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
0.90ct Marquise
$1,788 CAD