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Marquise|Natural|GIA

1.01ct D SI2 Marquise Natural Diamond

EX • D/SI2 • GIA 1553986435

Certificate GIA 1553986435

Diamond specifications and retailer prices

From $2,459 USD
As of November 5, 2026
Save $2,014 USD (45%) vs most expensive(unlock to see where)
11 retailers carry this diamond
Most expensive: $4,473 USD at Helzberg Diamonds · As of November 6, 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 D 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 1553986435. Listed at 11 retailers as of November 5, 2026, with prices from $2,459 to $4,473, a $2,014 spread on the same certified stone. Helzberg Diamonds lists it at $4,473. 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
D
Color
SI2
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle37.53°
Pavilion angle40.82°
OriginNatural
Grading LabGIA
CertificateGIA 1553986435
Dimensions9.99 × 5.27 × 3.33 mm
L/W Ratio1.90
Culet sizeNone
Top View
9.99 mm5.27 mm1.01 ctD / SI2
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 1553986435
Side View
Table 59.0%Crown 37.53°Girdle: STK-THKPavilion 40.82°Culet: NoneDepth 63.1%

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: Nov 5
Current: $4,473 USD|Low: $2,445 USD|High: $4,635 USD|Avg: $3,128 USD|-3.5%
Helzberg Diamonds
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
November 6, 2026
Retailer 5$2,459 USD
Retailer 11$2,509 USD
Retailer 6$2,603 USD
Retailer 3$2,611 USD
Retailer 4$2,766 USD
Retailer 10$2,833 USD
Retailer 8$3,051 USD
Retailer 9$3,164 USD
Retailer 2$3,339 USD
Retailer 7$4,253 USD
Helzberg Diamonds$4,473 USD

44 data points across 11 retailers

11 retailers$2,459 USD to $4,473 USD

A
Cheapest Retailer
-
$2,459 USD
A
Retailer 2
-
$2,509 USD
View
A
Retailer 3
-
$2,603 USD
View
A
Retailer 4
-
$2,611 USD
View
A
Retailer 5
-
$2,766 USD
View
A
Retailer 6
-
$2,833 USD
View
A
Retailer 7
-
$3,051 USD
View
A
Retailer 8
-
$3,164 USD
View
A
Retailer 9
-
$3,339 USD
View
B+
Retailer 10
-
$4,253 USD
View
Most Expensive
B
Helzberg Diamonds
XZRHLLJPOMKJL · Nov 6
$4,473 USD
View
10 more retailers have this diamond
Prices start from $2,459 USDSave up to $2,014 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
$2,459 USD