Marquise|Natural|GIA

3.01ct I SI2 Marquise Natural Diamond

EX • I/SI2 • GIA 5566211621

Certificate GIA 5566211621

Diamond specifications and retailer prices

From $37,109 USD
As of November 5, 2026
Save $4,061 USD (10%) vs most expensive(unlock to see where)
12 retailers carry this diamond
Most expensive: $50,739 USD at Helzberg Diamonds · As of October 11, 2026
View at Helzberg Diamonds

About this 3.01ct natural marquise diamond

This 3.01ct natural marquise sits in the three to five 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 5566211621. Listed at 12 retailers as of November 5, 2026, with a relatively tight 11% spread, which is unusual at this carat range and suggests competitive pricing across the listings. 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

3.01
Carat
I
Color
SI2
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryExcellent
FluorescenceFaint
Crown angle37.59°
Pavilion angle38.75°
OriginNatural
Grading LabGIA
CertificateGIA 5566211621
Dimensions14.81 × 7.59 × 4.52 mm
L/W Ratio1.95
Culet sizeNone
Top View
14.81 mm7.59 mm3.01 ctI / SI2
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceFaint
CertificateGIA 5566211621
Side View
Table 60.0%Crown 37.59°Girdle: STK-THKPavilion 38.75°Culet: NoneDepth 59.6%

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 5
Current: $50,739 USD|Low: $31,483 USD|High: $50,739 USD|Avg: $38,697 USD
Helzberg Diamonds
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 5, 2026
Retailer 7$31,483 USD
Retailer 16$33,615 USD
Retailer 6$34,360 USD
Retailer 8$35,327 USD
Retailer 4$35,368 USD
Retailer 14$35,727 USD
Retailer 2$37,109 USD
Retailer 12$39,780 USD
Retailer 9$39,840 USD
Retailer 11$39,840 USD
Retailer 15$40,241 USD
Retailer 3$40,362 USD
Retailer 10$41,170 USD
Retailer 5$41,284 USD
Retailer 13$48,341 USD
Helzberg Diamonds$50,739 USD

36 data points across 16 retailers

12 retailers$37,109 USD to $41,170 USD

Retailer 1
-
$31,483 USD
Price last confirmed 25 days ago
Retailer 2
-
$33,615 USD
View
Price last confirmed 30 days ago
Retailer 3
-
$34,360 USD
View
Price last confirmed 27 days ago
Retailer 4
-
$35,368 USD
View
Price last confirmed 26 days ago
B+
Retailer 5
-
$37,109 USD
View
B+
Retailer 6
-
$38,421 USD
View
Retailer 7
-
$39,780 USD
View
Price last confirmed 15 days ago
B
Retailer 8
-
$39,840 USD
View
B
Retailer 9
-
$39,840 USD
View
B
Retailer 10
-
$41,170 USD
View
Retailer 11
-
$41,284 USD
View
Price last confirmed 28 days ago
Most Expensive
Helzberg Diamonds
XZRLLMMIHHMIH · Oct 11
$50,739 USD
View
Price last confirmed 26 days ago
11 more retailers have this diamond
Prices start from $37,109 USDSave up to $4,061 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+
3.01ct Marquise
$37,109 USD