Marquise|Natural|GIA

1.00ct D SI1 Marquise Natural Diamond

EX • D/SI1 • GIA 7556561245

Certificate GIA 7556561245

Diamond specifications and retailer prices

From $3,756 USD
As of November 4, 2026
Save $3,963 USD (51%) vs most expensive(unlock to see where)
24 retailers carry this diamond
Most expensive: $8,451 USD at NZ Jewellers · As of September 30, 2026
View at NZ Jewellers

About this 1ct natural marquise diamond

This 1ct natural marquise sits in the classic one-carat band, graded D colour (colourless) and SI1 clarity (slightly-included), with a top-tier cut grade stated by the retailer rather than the lab and certified by GIA 7556561245. Listed at 24 retailers as of November 2, 2026, with a 106% spread between the cheapest and most expensive listing. That is exactly the kind of price-discovery gap Carat Hunter was built to surface. 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

1.00
Carat
D
Color
SI1
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishVery Good
SymmetryExcellent
FluorescenceFaint
Crown angle39.57°
Pavilion angle37.92°
OriginNatural
Grading LabGIA
CertificateGIA 7556561245
Dimensions9.89 × 5.21 × 3.12 mm
L/W Ratio1.90
Culet sizeNone
Top View
9.89 mm5.21 mm1.00 ctD / SI1
OriginNatural
CutExcellent
PolishVery Good
SymmetryExcellent
FluorescenceFaint
CertificateGIA 7556561245
Side View
Table 60.0%Crown 39.57°Girdle: STK-THKPavilion 37.92°Culet: NoneDepth 59.9%

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 4
Current: $4,772 USD|Low: $3,231 USD|High: $8,144 USD|Avg: $4,832 USD|-2.7%
Retailer 1
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
Retailer 17
Retailer 18
Retailer 19
Retailer 20
November 4, 2026
Retailer 9$3,231 USD
Retailer 13$3,601 USD
Retailer 17$3,863 USD
Retailer 11$3,900 USD
Retailer 16$4,124 USD
Retailer 8$4,149 USD
Retailer 19$4,160 USD
Retailer 18$4,366 USD
Retailer 4$4,438 USD
Retailer 1$4,772 USD
Retailer 5$4,778 USD
Retailer 3$4,940 USD
Retailer 20$4,940 USD
Retailer 10$4,943 USD
Retailer 6$5,093 USD
Retailer 2$5,100 USD
Retailer 12$5,461 USD
Retailer 7$5,579 USD
Retailer 15$5,957 USD
Retailer 14$7,719 USD

31 data points across 20 retailers

24 retailers$3,756 USD to $7,719 USD

B+
Cheapest Retailer
-
$3,756 USD
B+
Retailer 2
-
$3,863 USD
View
B+
Retailer 3
-
$4,124 USD
View
B+
Retailer 4
-
$4,160 USD
View
B+
Retailer 5
-
$4,366 USD
View
B+
Retailer 6
-
$4,438 USD
View
Retailer 7
-
$4,578 USD
View
Price last confirmed 27 days ago
Retailer 8
-
$4,578 USD
View
Price last confirmed 43 days ago
Retailer 9
-
$4,578 USD
View
Price last confirmed 34 days ago
Retailer 10
-
$4,578 USD
View
Price last confirmed 27 days ago
B+
Retailer 11
-
$4,772 USD
View
B+
Retailer 12
-
$4,778 USD
View
B+
Retailer 13
-
$4,940 USD
View
B+
Retailer 14
-
$4,940 USD
View
Retailer 15
-
$5,093 USD
View
Price last confirmed 26 days ago
B
Retailer 16
-
$5,100 USD
View
Retailer 17
-
$5,282 USD
View
Price last confirmed 43 days ago
Retailer 18
-
$5,282 USD
View
Price last confirmed 26 days ago
B
Retailer 19
-
$5,461 USD
View
Retailer 20
-
$5,579 USD
View
Price last confirmed 26 days ago
B
Retailer 21
-
$5,957 USD
View
B
Retailer 22
-
$7,719 USD
View
Retailer 23
-
$8,451 USD
View
Price last confirmed 45 days ago
Most Expensive
NZ Jewellers
7c3d07c8-2434-4443-8ee7-df7588fa8ebf · Sep 30
$8,451 USD
View
Price last confirmed 34 days ago
23 more retailers have this diamond
Prices start from $3,756 USDSave up to $3,963 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
$3,756 USD