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Marquise|Natural|GIA

1.02ct I SI2 Marquise Natural Diamond

VG • I/SI2 • GIA 1558370658

Certificate GIA 1558370658

Diamond specifications and retailer prices

From $1,531 USD
As of November 3, 2026
Save $1,248 USD (45%) vs most expensive(unlock to see where)
12 retailers carry this diamond
Most expensive: $2,779 USD at Helzberg Diamonds · As of November 3, 2026
View at Helzberg Diamonds

About this 1.02ct natural marquise diamond

This 1.02ct natural marquise sits in the classic one-carat band, graded I colour (near-colourless) and SI2 clarity (slightly-included), with a very-good cut grade stated by the retailer rather than the lab and certified by GIA 1558370658. Listed at 12 retailers as of November 3, 2026, with prices from $1,531 to $2,779, a $1,248 spread on the same certified stone. Helzberg Diamonds lists it at $2,779. 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

1.02
Carat
I
Color
SI2
Clarity
Very Good
Cut (retailer stated)

Specifications

Cut (retailer stated)Very Good
PolishExcellent
SymmetryVery Good
FluorescenceFaint
Crown angle38.56°
Pavilion angle37.51°
OriginNatural
Grading LabGIA
CertificateGIA 1558370658
Dimensions10.27 × 5.47 × 3.14 mm
L/W Ratio1.88
Culet sizeNone
Top View
10.27 mm5.47 mm1.02 ctI / SI2
OriginNatural
CutVery Good
PolishExcellent
SymmetryVery Good
FluorescenceFaint
CertificateGIA 1558370658
Side View
Table 61.0%Crown 38.56°Girdle: THN-THKPavilion 37.51°Culet: NoneDepth 57.4%

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 3
Current: $2,779 USD|Low: $1,524 USD|High: $2,891 USD|Avg: $1,962 USD|-3.9%
Helzberg Diamonds
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
November 4, 2026
Retailer 5$1,531 USD
Retailer 7$1,550 USD
Retailer 8$1,550 USD
Retailer 11$1,687 USD
Retailer 2$1,719 USD
Retailer 6$1,856 USD
Retailer 9$1,869 USD
Retailer 10$2,066 USD
Retailer 4$2,180 USD
Retailer 3$2,556 USD
Helzberg Diamonds$2,779 USD

37 data points across 11 retailers

12 retailers$1,531 USD to $2,779 USD

A
Cheapest Retailer
-
$1,531 USD
A
Retailer 2
-
$1,550 USD
View
A
Retailer 3
-
$1,550 USD
View
A
Retailer 4
-
$1,687 USD
View
A
Retailer 5
-
$1,719 USD
View
A
Retailer 6
-
$1,856 USD
View
B+
Retailer 7
-
$1,869 USD
View
B+
Retailer 8
-
$1,947 USD
View
B+
Retailer 9
-
$2,066 USD
View
A
Retailer 10
-
$2,180 USD
View
Retailer 11
-
$2,556 USD
View
Price last confirmed 8 days ago
Most Expensive
B+
Helzberg Diamonds
XZRHLLOJNGMLO · Nov 3
$2,779 USD
View
11 more retailers have this diamond
Prices start from $1,531 USDSave up to $1,248 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
1.02ct Marquise
$1,531 USD