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Marquise|Natural|GIA

0.80ct I SI1 Marquise Natural Diamond

EX • I/SI1 • GIA 3565688587

Certificate GIA 3565688587

Diamond specifications and retailer prices

From €1,199 EUR
SGD 1,817 SGD
As of October 31, 2026
Save €966 EUR (45%) vs most expensive(unlock to see where)
13 retailers carry this diamond
Most expensive: €2,165 EUR at Helzberg Diamonds · As of November 2, 2026
View at Helzberg Diamonds

About this 0.8ct natural marquise diamond

This 0.8ct natural marquise sits in the just-under-one-carat band, graded I colour (near-colourless) and SI1 clarity (slightly-included), with a top-tier cut grade stated by the retailer rather than the lab and certified by GIA 3565688587. Listed at 13 retailers as of October 31, 2026, with prices from €1,199 to €2,165, a €966 spread on the same certified stone. Helzberg Diamonds lists it at €2,165. 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

0.80
Carat
I
Color
SI1
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryVery Good
FluorescenceNone
Crown angle39.91°
Pavilion angle39.69°
OriginNatural
Grading LabGIA
CertificateGIA 3565688587
Dimensions9.03 × 4.77 × 3.05 mm
L/W Ratio1.89
Culet sizeNone
Top View
9.03 mm4.77 mm0.80 ctI / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryVery Good
FluorescenceNone
CertificateGIA 3565688587
Side View
Table 59.0%Crown 39.91°Girdle: STK-VTKPavilion 39.69°Culet: NoneDepth 63.9%

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: Oct 31
Current: €2,165 EUR|Low: €1,208 EUR|High: €2,165 EUR|Avg: €1,580 EUR
Helzberg Diamonds
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
November 2, 2026
Retailer 8€1,208 EUR
Retailer 6€1,226 EUR
Retailer 9€1,229 EUR
Retailer 12€1,271 EUR
Retailer 4€1,315 EUR
Retailer 5€1,338 EUR
Retailer 7€1,516 EUR
Retailer 3€1,661 EUR
Retailer 2€1,737 EUR
Retailer 11€1,841 EUR
Retailer 10€1,949 EUR
Helzberg Diamonds€2,165 EUR

11 data points across 12 retailers

13 retailers€1,199 EUR to €2,165 EUR

A
Cheapest Retailer
-
€1,199 EUR
SGD 1,817 SGD
A
Retailer 2
-
€1,208 EUR
$1,355 USD
View
A
Retailer 3
-
€1,226 EUR
$1,375 USD
View
A
Retailer 4
-
€1,229 EUR
$1,378 USD
View
A
Retailer 5
-
€1,271 EUR
$1,426 USD
View
A
Retailer 6
-
€1,315 EUR
SGD 1,993 SGD
View
A
Retailer 7
-
€1,338 EUR
£1,182 GBP
View
B+
Retailer 8
-
€1,516 EUR
$1,700 USD
View
B+
Retailer 9
-
€1,661 EUR
$1,863 USD
View
B+
Retailer 10
-
€1,737 EUR
View
B
Retailer 11
-
€1,841 EUR
$2,065 USD
View
B
Retailer 12
-
€1,949 EUR
$2,186 USD
View
Most Expensive
B
Helzberg Diamonds
XZRJLMLMOOLON · Nov 2
€2,165 EUR
$2,428 USD
View
12 more retailers have this diamond
Prices start from €1,199 EURSave up to €966 EUR

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
0.80ct Marquise
€1,199 EUR