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Marquise|Natural|GIA

1.00ct I SI2 Marquise Natural Diamond

GD • I/SI2 • GIA 1555625816

Certificate GIA 1555625816

Diamond specifications and retailer prices

From $2,446 USD
As of November 6, 2026
Save $3,857 USD (61%) vs most expensive(unlock to see where)
14 retailers carry this diamond
Most expensive: $6,303 USD at NZ Jewellers · As of November 7, 2026
View at NZ Jewellers

About this 1ct natural marquise diamond

This 1ct natural marquise sits in the classic one-carat band, graded I colour (near-colourless) and SI2 clarity (slightly-included), with a standard cut grade stated by the retailer rather than the lab and certified by GIA 1555625816. Listed at 14 retailers as of November 6, 2026, with prices from $2,446 to $6,303, a $3,857 spread on the same certified stone. NZ Jewellers lists it at $6,303. 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

1.00
Carat
I
Color
SI2
Clarity
Good
Cut (retailer stated)

Specifications

Cut (retailer stated)Good
PolishVery Good
SymmetryVery Good
FluorescenceNone
Crown angle35.04°
Pavilion angle39.4°
OriginNatural
Grading LabGIA
CertificateGIA 1555625816
Dimensions10.24 × 5.33 × 3.07 mm
L/W Ratio1.92
Girdle conditionVery Thick
Key to symbols
Twinning Wisp, Feather
Top View
10.24 mm5.33 mm1.00 ctI / SI2
OriginNatural
CutGood
PolishVery Good
SymmetryVery Good
FluorescenceNone
CertificateGIA 1555625816
Side View
Table 66.0%Crown 35.04°Girdle: STK-VTKPavilion 39.4°Culet: NoneDepth 57.5%

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: Nov 6
Current: $6,303 USD|Low: $2,446 USD|High: $6,303 USD|Avg: $3,186 USD
NZ Jewellers
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
Retailer 15
Retailer 16
November 7, 2026
Retailer 4$2,446 USD
Retailer 6$2,526 USD
Retailer 5$2,588 USD
Retailer 3$2,731 USD
Retailer 9$2,731 USD
Retailer 15$2,766 USD
Retailer 2$2,832 USD
Retailer 12$2,836 USD
Retailer 8$2,870 USD
Retailer 10$2,983 USD
Retailer 7$3,095 USD
Retailer 16$3,151 USD
Retailer 14$3,191 USD
Retailer 11$3,652 USD
Retailer 13$5,015 USD
NZ Jewellers$6,303 USD

28 data points across 16 retailers

14 retailers$2,446 USD to $6,303 USD

B+
Cheapest Retailer
-
$2,446 USD
B+
Retailer 2
-
$2,588 USD
View
B+
Retailer 3
-
$2,731 USD
View
B+
Retailer 4
-
$2,731 USD
View
B+
Retailer 5
-
$2,766 USD
View
B+
Retailer 6
-
$2,832 USD
View
B+
Retailer 7
-
$2,836 USD
View
Retailer 8
-
$2,870 USD
View
Price last confirmed 26 days ago
B+
Retailer 9
-
$2,983 USD
View
B
Retailer 10
-
$3,151 USD
View
B
Retailer 11
-
$3,191 USD
View
B
Retailer 12
-
$3,652 USD
View
C
Retailer 13
-
$5,015 USD
View
Most Expensive
C
NZ Jewellers
15696cb6-cd67-4292-a7f6-b87f3e19c620 · Nov 7
$6,303 USD
View
13 more retailers have this diamond
Prices start from $2,446 USDSave up to $3,857 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+
1.00ct Marquise
$2,446 USD