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Marquise|Natural|GIA

0.80ct E SI1 Marquise Natural Diamond

EX • E/SI1 • GIA 6551378239

Certificate GIA 6551378239

Diamond specifications and retailer prices

From $2,447 SGD
$1,914 USD
As of October 26, 2026
Save $3,215 SGD (57%) vs most expensive(unlock to see where)
12 retailers carry this diamond
Most expensive: $5,662 SGD 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 $2,447 to $5,662, a $3,215 spread on the same certified stone. NZ Jewellers lists it at $5,662. 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
Colour
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
Unlock full score analysis
See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Oct 26
Current: $5,662 SGD|Low: $2,447 SGD|High: $5,662 SGD|Avg: $3,457 SGD
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$2,447 SGD
Retailer 13$2,483 SGD
Retailer 5$2,648 SGD
Retailer 6$2,689 SGD
Retailer 4$2,708 SGD
Retailer 10$2,833 SGD
Retailer 2$3,124 SGD
Retailer 3$3,330 SGD
Retailer 8$3,337 SGD
Retailer 11$3,673 SGD
Retailer 7$3,996 SGD
Retailer 12$4,656 SGD
NZ Jewellers$5,662 SGD

39 data points across 13 retailers

12 retailers$2,447 SGD to $5,662 SGD

A
Cheapest Retailer
-
$2,447 SGD
$1,914 USD
A
Retailer 2
-
$2,483 SGD
$1,942 USD
View
A
Retailer 3
-
$2,648 SGD
$2,071 USD
View
A
Retailer 4
-
$2,689 SGD
£1,656 GBP
View
B+
Retailer 5
-
$2,833 SGD
$2,216 USD
View
B+
Retailer 6
-
$3,124 SGD
$2,444 USD
View
Retailer 7
-
$3,330 SGD
A$4,008 AUD
View
Price last confirmed 24 days ago
B+
Retailer 8
-
$3,337 SGD
£2,055 GBP
View
Retailer 9
-
$3,673 SGD
€2,736 EUR
View
Price last confirmed 7 days ago
B+
Retailer 10
-
$3,996 SGD
ZAR 50,493 ZAR
View
Retailer 11
-
$4,656 SGD
£2,868 GBP
View
Price last confirmed 13 days ago
Most Expensive
B
NZ Jewellers
74675e3d-f34a-4908-a9c6-dd511d231346 · Oct 24
$5,662 SGD
$4,429 USD
View
11 more retailers have this diamond
Prices start from $2,447 SGDSave up to $3,215 SGD

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
$2,447 SGD