Marquise|Natural|GIA

0.90ct E SI1 Marquise Natural Diamond

EX • E/SI1 • GIA 1557992950

Certificate GIA 1557992950

Diamond specifications and retailer prices

From $1,984 USD
HK$15,500 HKD
As of October 26, 2026
Save $3,251 USD (62%) vs most expensive(unlock to see where)
13 retailers carry this diamond
Most expensive: $5,670 USD at NZ Jewellers · As of October 24, 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 E colour (colourless) and SI1 clarity (slightly-included), with a top-tier cut grade stated by the retailer rather than the lab and certified by GIA 1557992950. Listed at 13 retailers as of October 26, 2026, with a 164% 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
E
Color
SI1
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryExcellent
FluorescenceMedium
Pavilion angle40.26°
OriginNatural
Grading LabGIA
CertificateGIA 1557992950
Dimensions10.52 × 4.78 × 3.11 mm
L/W Ratio2.20
Key to symbols
Feather
Top View
10.52 mm4.78 mm0.90 ctE / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceMedium
CertificateGIA 1557992950
Side View
Table 57.0%CrownGirdle: STK-VTKPavilion 40.26°Culet: NoneDepth 65.0%

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 26
Current: $5,670 USD|Low: $1,984 USD|High: $5,946 USD|Avg: $3,476 USD|-4.6%
NZ Jewellers
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
October 27, 2026
Retailer 3$1,984 USD
Retailer 2$2,408 USD
Retailer 13$2,500 USD
Retailer 4$2,712 USD
Retailer 6$2,779 USD
Retailer 11$2,816 USD
Retailer 5$2,955 USD
Retailer 10$3,194 USD
Retailer 8$3,285 USD
Retailer 12$3,381 USD
Retailer 14$4,116 USD
Retailer 9$4,757 USD
Retailer 7$5,235 USD
NZ Jewellers$5,670 USD

26 data points across 14 retailers

13 retailers$1,984 USD to $5,235 USD

A
Cheapest Retailer
-
$1,984 USD
HK$15,500 HKD
Retailer 2
-
$2,408 USD
€2,293 EUR
View
Price last confirmed 3 days ago
B+
Retailer 3
-
$2,500 USD
View
B+
Retailer 4
-
$2,712 USD
View
B+
Retailer 5
-
$2,779 USD
SGD 3,756 SGD
View
B+
Retailer 6
-
$2,816 USD
View
B+
Retailer 7
-
$2,955 USD
View
Retailer 8
-
$3,194 USD
A$4,914 AUD
View
Price last confirmed 7 days ago
B+
Retailer 9
-
$3,285 USD
€3,129 EUR
View
B
Retailer 10
-
$4,116 USD
€3,920 EUR
View
B
Retailer 11
-
$4,757 USD
£3,746 GBP
View
B
Retailer 12
-
$5,235 USD
£4,122 GBP
View
Most Expensive
NZ Jewellers
a284c0a3-a01c-45e0-8267-667b4cb799b5 · Oct 24
$5,670 USD
View
Price last confirmed 7 days ago
12 more retailers have this diamond
Prices start from $1,984 USDSave up to $3,251 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.

A
0.90ct Marquise
$1,984 USD