Marquise|Natural|GIA

1.00ct I SI2 Marquise Natural Diamond

VG • I/SI2 • GIA 7558350140

Certificate GIA 7558350140

Diamond specifications and retailer prices

From $1,756 USD
As of November 6, 2026
Save $2,583 USD (60%) vs most expensive(unlock to see where)
25 retailers carry this diamond
Most expensive: $5,192 USD at NZ Jewellers · As of October 3, 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 very-good cut grade stated by the retailer rather than the lab and certified by GIA 7558350140. Listed at 25 retailers as of November 4, 2026, with a 147% spread between the cheapest and most expensive listing. That is exactly the kind of price-discovery gap Carat Hunter was built to surface. 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
Very Good
Cut (retailer stated)

Specifications

Cut (retailer stated)Very Good
PolishExcellent
SymmetryVery Good
FluorescenceFaint
Crown angle40.79°
Pavilion angle39.73°
OriginNatural
Grading LabGIA
CertificateGIA 7558350140
Dimensions9.44 × 5.10 × 3.34 mm
L/W Ratio1.85
Culet sizeNone
Top View
9.44 mm5.10 mm1.00 ctI / SI2
OriginNatural
CutVery Good
PolishExcellent
SymmetryVery Good
FluorescenceFaint
CertificateGIA 7558350140
Side View
Table 60.0%Crown 40.79°Girdle: STK-VTKPavilion 39.73°Culet: NoneDepth 65.6%

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 6
Current: $5,192 USD|Low: $1,624 USD|High: $5,192 USD|Avg: $2,600 USD
NZ Jewellers
Retailer 2
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Retailer 29
November 6, 2026
Retailer 10$1,756 USD
Retailer 25$1,901 USD
Retailer 3$1,948 USD
Retailer 28$1,960 USD
Retailer 7$1,978 USD
Retailer 12$2,023 USD
Retailer 14$2,032 USD
Retailer 29$2,076 USD
Retailer 15$2,119 USD
Retailer 5$2,250 USD
Retailer 11$2,250 USD
Retailer 19$2,302 USD
Retailer 22$2,349 USD
Retailer 4$2,351 USD
Retailer 27$2,354 USD
Retailer 2$2,442 USD
Retailer 6$2,459 USD
Retailer 8$2,520 USD
Retailer 20$2,538 USD
Retailer 16$2,596 USD
Retailer 17$2,600 USD
Retailer 18$2,600 USD
Retailer 23$2,627 USD
Retailer 21$2,680 USD
Retailer 13$2,892 USD
Retailer 26$3,572 USD
Retailer 9$3,728 USD
Retailer 24$4,339 USD
NZ Jewellers$5,192 USD

17 data points across 29 retailers

25 retailers$1,756 USD to $4,339 USD

A
Cheapest Retailer
-
$1,756 USD
A
Retailer 2
-
$1,901 USD
View
B+
Retailer 3
-
$1,948 USD
View
B+
Retailer 4
-
$1,960 USD
View
B+
Retailer 5
-
$1,978 USD
View
B+
Retailer 6
-
$2,023 USD
View
B+
Retailer 7
-
$2,032 USD
View
B+
Retailer 8
-
$2,076 USD
View
Final sale: no returns
B+
Retailer 9
-
$2,119 USD
View
Retailer 10
-
$2,250 USD
View
Price last confirmed 45 days ago
B+
Retailer 11
-
$2,302 USD
View
Retailer 12
-
$2,349 USD
View
Price last confirmed 32 days ago
B+
Retailer 13
-
$2,354 USD
View
B+
Retailer 14
-
$2,442 USD
View
B+
Retailer 15
-
$2,459 USD
View
B+
Retailer 16
-
$2,520 USD
View
Retailer 17
-
$2,596 USD
View
Price last confirmed 45 days ago
B+
Retailer 18
-
$2,600 USD
View
B+
Retailer 19
-
$2,600 USD
View
B+
Retailer 20
-
$2,627 USD
View
B+
Retailer 21
-
$2,680 USD
View
B+
Retailer 22
-
$2,892 USD
View
B
Retailer 23
-
$3,572 USD
View
B
Retailer 24
-
$4,339 USD
View
Most Expensive
NZ Jewellers
c80e9326-1258-4adf-8d75-8fba039cd4d0 · Oct 3
$5,192 USD
View
Price last confirmed 34 days ago
24 more retailers have this diamond
Prices start from $1,756 USDSave up to $2,583 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
1.00ct Marquise
$1,756 USD