Marquise|Natural|GIA

1.00ct I SI2 Marquise Natural Diamond

EX • I/SI2 • GIA 1563236191

Certificate GIA 1563236191

Diamond specifications and retailer prices

From $1,638 USD
As of November 6, 2026
Save $2,788 USD (63%) vs most expensive(unlock to see where)
13 retailers carry this diamond
Most expensive: $4,426 USD at NZ Jewellers · As of November 5, 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 top-tier cut grade stated by the retailer rather than the lab and certified by GIA 1563236191. Listed at 13 retailers as of November 5, 2026, with prices from $1,638 to $4,426, a $2,788 spread on the same certified stone. NZ Jewellers lists it at $4,426. 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
I
Color
SI2
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryVery Good
FluorescenceFaint
OriginNatural
Grading LabGIA
CertificateGIA 1563236191
Dimensions10.03 × 5.28 × 3.32 mm
L/W Ratio1.90
Culet sizeNone
Key to symbols
Crystal, Feather, Cavity, Needle, Indented Natural
Top View
10.03 mm5.28 mm1.00 ctI / SI2
OriginNatural
CutExcellent
PolishExcellent
SymmetryVery Good
FluorescenceFaint
CertificateGIA 1563236191
Side View
Table 60.0%CrownGirdle: MED-VTKPavilionCulet: NoneDepth 62.8%

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 6
Current: $4,426 USD|Low: $1,625 USD|High: $4,630 USD|Avg: $2,418 USD|-4.4%
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
November 6, 2026
Retailer 8$1,638 USD
Retailer 2$1,642 USD
Retailer 12$1,930 USD
Retailer 4$1,954 USD
Retailer 6$2,081 USD
Retailer 11$2,117 USD
Retailer 5$2,136 USD
Retailer 10$2,215 USD
Retailer 3$2,276 USD
Retailer 13$2,310 USD
Retailer 9$2,443 USD
Retailer 7$3,699 USD
NZ Jewellers$4,426 USD

29 data points across 13 retailers

13 retailers$1,638 USD to $4,426 USD

A
Cheapest Retailer
-
$1,638 USD
A
Retailer 2
-
$1,642 USD
View
Retailer 3
-
$1,930 USD
View
Price last confirmed 9 days ago
B+
Retailer 4
-
$1,954 USD
View
Final sale: no returns
A
Retailer 5
-
$2,081 USD
View
A
Retailer 6
-
$2,117 USD
View
A
Retailer 7
-
$2,136 USD
View
A
Retailer 8
-
$2,215 USD
View
Retailer 9
-
$2,276 USD
View
Price last confirmed 10 days ago
A
Retailer 10
-
$2,310 USD
View
A
Retailer 11
-
$2,443 USD
View
B
Retailer 12
-
$3,699 USD
View
Most Expensive
B
NZ Jewellers
62d3d143-62ec-48a2-b605-e415e9463bd0 · Nov 5
$4,426 USD
View
12 more retailers have this diamond
Prices start from $1,638 USDSave up to $2,788 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
$1,638 USD