Marquise|Natural|GIA

0.80ct E SI1 Marquise Natural Diamond

EX • E/SI1 • GIA 6551378239

Certificate GIA 6551378239

Diamond specifications and retailer prices

From $1,914 USD
As of October 26, 2026
Save $2,515 USD (57%) vs most expensive(unlock to see where)
12 retailers carry this diamond
Most expensive: $4,429 USD at NZ Jewellers · As of October 24, 2026
View at NZ Jewellers

About this 0.8ct natural marquise diamond

This 0.8ct natural marquise sits in the just-under-one-carat band, graded E 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 6551378239. Listed at 12 retailers as of October 24, 2026, with prices from $1,914 to $4,429, a $2,515 spread on the same certified stone. NZ Jewellers lists it at $4,429. 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
E
Color
SI1
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 6551378239
Dimensions9.42 × 4.90 × 3.01 mm
L/W Ratio1.92
Culet sizeNone
Key to symbols
Feather, Cloud
Top View
9.42 mm4.90 mm0.80 ctE / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 6551378239
Side View
Table 60.0%CrownGirdle: STK-THKPavilionCulet: NoneDepth 61.5%

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: Oct 26
Current: $4,429 USD|Low: $1,914 USD|High: $4,429 USD|Avg: $2,703 USD
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
October 27, 2026
Retailer 9$1,914 USD
Retailer 13$1,942 USD
Retailer 5$2,071 USD
Retailer 6$2,103 USD
Retailer 4$2,118 USD
Retailer 10$2,216 USD
Retailer 2$2,444 USD
Retailer 3$2,605 USD
Retailer 8$2,610 USD
Retailer 11$2,873 USD
Retailer 7$3,126 USD
Retailer 12$3,642 USD
NZ Jewellers$4,429 USD

40 data points across 13 retailers

12 retailers$1,914 USD to $4,429 USD

A
Cheapest Retailer
-
$1,914 USD
A
Retailer 2
-
$1,942 USD
View
A
Retailer 3
-
$2,071 USD
View
A
Retailer 4
-
$2,103 USD
£1,656 GBP
View
B+
Retailer 5
-
$2,216 USD
View
B+
Retailer 6
-
$2,444 USD
View
Retailer 7
-
$2,605 USD
A$4,008 AUD
View
Price last confirmed 23 days ago
B+
Retailer 8
-
$2,610 USD
£2,055 GBP
View
B+
Retailer 9
-
$2,873 USD
€2,736 EUR
View
B+
Retailer 10
-
$3,126 USD
ZAR 50,493 ZAR
View
Retailer 11
-
$3,642 USD
£2,868 GBP
View
Price last confirmed 12 days ago
Most Expensive
B
NZ Jewellers
74675e3d-f34a-4908-a9c6-dd511d231346 · Oct 24
$4,429 USD
View
11 more retailers have this diamond
Prices start from $1,914 USDSave up to $2,515 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
0.80ct Marquise
$1,914 USD