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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 $2,275 NZD
HK$10,000 HKD
As of November 1, 2026
Save $3,036 NZD (57%) vs most expensive(unlock to see where)
19 retailers carry this diamond
Most expensive: $7,394 NZD 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 November 1, 2026, with a 133% 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
Colour
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: Nov 1
Current: $2,369 NZD|Low: $2,275 NZD|High: $5,397 NZD|Avg: $3,598 NZD|-2.8%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
November 2, 2026
Retailer 6$2,275 NZD
Retailer 1$2,369 NZD
Retailer 10$2,796 NZD
Retailer 9$2,812 NZD
Retailer 2$3,159 NZD
Retailer 11$3,274 NZD
Retailer 4$3,369 NZD
Retailer 3$3,972 NZD
Retailer 8$4,139 NZD
Retailer 7$4,471 NZD
Retailer 5$5,311 NZD

33 data points across 11 retailers

19 retailers$2,275 NZD to $5,311 NZD

A
Cheapest Retailer
-
$2,275 NZD
HK$10,000 HKD
A
Retailer 2
-
$2,369 NZD
₹126,923 INR
View
B+
Retailer 3
-
$2,796 NZD
$1,573 USD
View
Final sale: no returns
B+
Retailer 4
-
$2,812 NZD
SGD 2,138 SGD
View
B+
Retailer 5
-
$2,865 NZD
$1,612 USD
View
B+
Retailer 6
-
$2,870 NZD
$1,615 USD
View
B+
Retailer 7
-
$2,915 NZD
$1,640 USD
View
Retailer 8
-
$3,030 NZD
$1,705 USD
View
Price last confirmed 15 days ago
Retailer 9
-
$3,030 NZD
$1,705 USD
View
Price last confirmed 18 days ago
B
Retailer 10
-
$3,159 NZD
SGD 2,402 SGD
View
Retailer 11
-
$3,171 NZD
$1,784 USD
View
Price last confirmed 17 days ago
B+
Retailer 12
-
$3,274 NZD
$1,842 USD
View
B+
Retailer 13
-
$3,369 NZD
£1,492 GBP
View
Retailer 14
-
$3,498 NZD
$1,968 USD
View
Price last confirmed 15 days ago
Retailer 15
-
$3,972 NZD
A$3,438 AUD
View
Price last confirmed 28 days ago
B
Retailer 16
-
$4,139 NZD
€2,218 EUR
View
B
Retailer 17
-
$4,471 NZD
ZAR 40,636 ZAR
View
B
Retailer 18
-
$5,311 NZD
£2,353 GBP
View
Most Expensive
NZ Jewellers
5e747eff-1b15-4ef9-ac3c-25cc03d9706c · Oct 17
$7,394 NZD
$4,160 USD
View
Price last confirmed 16 days ago
18 more retailers have this diamond
Prices start from $2,275 NZDSave up to $3,036 NZD

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
$2,275 NZD