Marquise|Natural|GIA

1.01ct E SI2 Marquise Natural Diamond

EX • E/SI2 • GIA 1567186401

Certificate GIA 1567186401

Diamond specifications and retailer prices

From $2,571 USD
As of November 4, 2026
Save $2,321 USD (47%) vs most expensive(unlock to see where)
14 retailers carry this diamond
Most expensive: $4,892 USD at Helzberg Diamonds · As of November 4, 2026
View at Helzberg Diamonds

About this 1.01ct natural marquise diamond

This 1.01ct natural marquise sits in the classic one-carat band, graded E colour (colourless) and SI2 clarity (slightly-included), with a top-tier cut grade stated by the retailer rather than the lab and certified by GIA 1567186401. Listed at 14 retailers as of November 4, 2026, with prices from $2,571 to $4,892, a $2,321 spread on the same certified stone. Helzberg Diamonds lists it at $4,892. 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

1.01
Carat
E
Color
SI2
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle39.84°
Pavilion angle39.7°
OriginNatural
Grading LabGIA
CertificateGIA 1567186401
Dimensions9.95 × 5.19 × 3.34 mm
L/W Ratio1.92
Culet sizeNone
Top View
9.95 mm5.19 mm1.01 ctE / SI2
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 1567186401
Side View
Table 57.0%Crown 39.84°Girdle: MED-THKPavilion 39.7°Culet: NoneDepth 64.4%

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 4
Current: $4,892 USD|Low: $2,571 USD|High: $5,082 USD|Avg: $3,377 USD|-3.7%
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
Retailer 14
November 6, 2026
Retailer 11$2,571 USD
Retailer 4$2,647 USD
Retailer 8$2,688 USD
Retailer 6$2,854 USD
Retailer 5$2,900 USD
Retailer 7$2,986 USD
Retailer 3$3,097 USD
Retailer 13$3,319 USD
Retailer 10$3,340 USD
Retailer 14$3,417 USD
Retailer 2$3,419 USD
Retailer 9$3,568 USD
Retailer 12$4,624 USD
Helzberg Diamonds$4,892 USD

28 data points across 14 retailers

14 retailers$2,571 USD to $4,892 USD

A
Cheapest Retailer
-
$2,571 USD
A
Retailer 2
-
$2,647 USD
View
A
Retailer 3
-
$2,688 USD
View
A
Retailer 4
-
$2,854 USD
View
A
Retailer 5
-
$2,900 USD
View
A
Retailer 6
-
$2,986 USD
View
A
Retailer 7
-
$3,097 USD
View
A
Retailer 8
-
$3,319 USD
View
A
Retailer 9
-
$3,340 USD
View
A
Retailer 10
-
$3,417 USD
View
A
Retailer 11
-
$3,419 USD
View
B+
Retailer 12
-
$3,568 USD
View
B+
Retailer 13
-
$4,624 USD
View
Most Expensive
B+
Helzberg Diamonds
XZRHLMNHOMKGH · Nov 4
$4,892 USD
View
13 more retailers have this diamond
Prices start from $2,571 USDSave up to $2,321 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
1.01ct Marquise
$2,571 USD