Marquise|Natural|GIA

0.90ct E SI1 Marquise Natural Diamond

EX • E/SI1 • GIA 7566551110

Certificate GIA 7566551110

Diamond specifications and retailer prices

From $2,532 USD
SGD 3,421 SGD
As of October 29, 2026
Save $2,195 USD (46%) vs most expensive(unlock to see where)
14 retailers carry this diamond
Most expensive: $4,727 USD at Helzberg Diamonds · As of October 29, 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 top-tier cut grade stated by the retailer rather than the lab and certified by GIA 7566551110. Listed at 14 retailers as of October 29, 2026, with prices from $2,532 to $4,727, a $2,195 spread on the same certified stone. Helzberg Diamonds lists it at $4,727. 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
FluorescenceNone
Crown angle39.65°
Pavilion angle38.46°
OriginNatural
Grading LabGIA
CertificateGIA 7566551110
Dimensions9.55 × 5.02 × 3.06 mm
L/W Ratio1.90
Culet sizeNone
Top View
9.55 mm5.02 mm0.90 ctE / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 7566551110
Side View
Table 60.0%Crown 39.65°Girdle: STK-VTKPavilion 38.46°Culet: NoneDepth 61.0%

Caratlytics Score

How it works →
B+
Very Good
Strong quality and value balance
Unlock full score analysis
See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Oct 29
Current: $4,727 USD|Low: $2,703 USD|High: $4,727 USD|Avg: $3,333 USD
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 13$2,703 USD
Retailer 8$2,705 USD
Retailer 3$2,728 USD
Retailer 12$2,750 USD
Retailer 6$2,967 USD
Retailer 5$2,993 USD
Retailer 11$3,214 USD
Retailer 7$3,317 USD
Retailer 4$3,317 USD
Retailer 2$3,448 USD
Retailer 10$4,191 USD
Retailer 9$4,435 USD
Helzberg Diamonds$4,727 USD

22 data points across 13 retailers

14 retailers$2,532 USD to $4,727 USD

B+
Cheapest Retailer
-
$2,532 USD
SGD 3,421 SGD
B+
Retailer 2
-
$2,703 USD
View
B+
Retailer 3
-
$2,705 USD
View
B+
Retailer 4
-
$2,728 USD
View
B+
Retailer 5
-
$2,750 USD
View
B+
Retailer 6
-
$2,967 USD
£2,337 GBP
View
B+
Retailer 7
-
$2,993 USD
SGD 4,045 SGD
View
B+
Retailer 8
-
$3,214 USD
View
B+
Retailer 9
-
$3,317 USD
€3,159 EUR
View
B+
Retailer 10
-
$3,317 USD
View
B+
Retailer 11
-
$3,448 USD
View
B
Retailer 12
-
$4,191 USD
View
B
Retailer 13
-
$4,435 USD
View
Most Expensive
B
Helzberg Diamonds
XZRNLMMLLHHHG · Oct 29
$4,727 USD
View
13 more retailers have this diamond
Prices start from $2,532 USDSave up to $2,195 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.

B+
0.90ct Marquise
$2,532 USD