Marquise|Natural|GIA

0.90ct E SI1 Marquise Natural Diamond

VG • E/SI1 • GIA 2557365490

Certificate GIA 2557365490

Diamond specifications and retailer prices

From $2,293 USD
SGD 3,099 SGD
As of October 29, 2026
Save $1,987 USD (46%) vs most expensive(unlock to see where)
14 retailers carry this diamond
Most expensive: $4,280 USD at Helzberg Diamonds · As of October 30, 2026
View at Helzberg Diamonds

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 very-good cut grade stated by the retailer rather than the lab and certified by GIA 2557365490. Listed at 14 retailers as of October 29, 2026, with prices from $2,293 to $4,280, a $1,987 spread on the same certified stone. Helzberg Diamonds lists it at $4,280. 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
E
Color
SI1
Clarity
Very Good
Cut (retailer stated)

Specifications

Cut (retailer stated)Very Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle39.56°
Pavilion angle38.14°
OriginNatural
Grading LabGIA
CertificateGIA 2557365490
Dimensions9.43 × 5.05 × 2.98 mm
L/W Ratio1.87
Culet sizeNone
Top View
9.43 mm5.05 mm0.90 ctE / SI1
OriginNatural
CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 2557365490
Side View
Table 62.0%Crown 39.56°Girdle: STK-VTKPavilion 38.14°Culet: NoneDepth 59.0%

Caratlytics Score

How it works →
A
Excellent
Excellent quality and great value
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See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Oct 29
Current: $4,280 USD|Low: $2,293 USD|High: $4,367 USD|Avg: $3,042 USD|-2.0%
Helzberg Diamonds
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
Retailer 13
October 30, 2026
Retailer 12$2,293 USD
Retailer 9$2,448 USD
Retailer 10$2,474 USD
Retailer 8$2,490 USD
Retailer 6$2,690 USD
Retailer 4$2,711 USD
Retailer 13$2,926 USD
Retailer 3$3,047 USD
Retailer 2$3,124 USD
Retailer 7$3,207 USD
Retailer 11$3,796 USD
Retailer 5$4,030 USD
Helzberg Diamonds$4,280 USD

36 data points across 13 retailers

14 retailers$2,293 USD to $4,280 USD

A
Cheapest Retailer
-
$2,293 USD
SGD 3,099 SGD
B+
Retailer 2
-
$2,448 USD
View
B+
Retailer 3
-
$2,474 USD
View
B+
Retailer 4
-
$2,490 USD
View
B+
Retailer 5
-
$2,690 USD
£2,118 GBP
View
B+
Retailer 6
-
$2,711 USD
SGD 3,664 SGD
View
B+
Retailer 7
-
$2,926 USD
View
B
Retailer 8
-
$3,047 USD
View
B+
Retailer 9
-
$3,124 USD
View
B+
Retailer 10
-
$3,207 USD
€3,054 EUR
View
B
Retailer 11
-
$3,575 USD
View
B
Retailer 12
-
$3,796 USD
View
B
Retailer 13
-
$4,030 USD
View
Most Expensive
B
Helzberg Diamonds
XZRILLNJMLKPG · Oct 30
$4,280 USD
View
13 more retailers have this diamond
Prices start from $2,293 USDSave up to $1,987 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
$2,293 USD