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Marquise|Natural|GIA

0.80ct H SI1 Marquise Natural Diamond

EX • H/SI1 • GIA 6551631658

Certificate GIA 6551631658

Diamond specifications and retailer prices

From $1,686 SGD
HK$10,300 HKD
As of November 1, 2026
Save $3,798 SGD (69%) vs most expensive(unlock to see where)
11 retailers carry this diamond
Most expensive: $5,484 SGD at NZ Jewellers · As of October 30, 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 H 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 6551631658. Listed at 11 retailers as of October 30, 2026, with prices from $1,686 to $5,484, a $3,798 spread on the same certified stone. NZ Jewellers lists it at $5,484. 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
H
Colour
SI1
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishVery Good
SymmetryVery Good
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 6551631658
Dimensions10.46 × 4.57 × 2.83 mm
L/W Ratio2.29
Girdle conditionVery Thick to Extremely Thick
Key to symbols
Twinning Wisp
Top View
10.46 mm4.57 mm0.80 ctH / SI1
OriginNatural
CutExcellent
PolishVery Good
SymmetryVery Good
FluorescenceNone
CertificateGIA 6551631658
Side View
Table 62.0%CrownGirdle: VTK-XTKPavilionCulet: NoneDepth 61.9%

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: Nov 1
Current: $5,484 SGD|Low: $1,670 SGD|High: $5,910 SGD|Avg: $2,702 SGD|-7.2%
NZ Jewellers
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
November 2, 2026
Retailer 7$1,686 SGD
Retailer 2$1,693 SGD
Retailer 3$1,789 SGD
Retailer 10$2,101 SGD
Retailer 8$2,248 SGD
Retailer 11$2,340 SGD
Retailer 9$2,352 SGD
Retailer 4$2,835 SGD
Retailer 5$2,872 SGD
Retailer 6$3,939 SGD
NZ Jewellers$5,484 SGD

30 data points across 11 retailers

11 retailers$1,686 SGD to $5,484 SGD

A
Cheapest Retailer
-
$1,686 SGD
HK$10,300 HKD
A
Retailer 2
-
$1,693 SGD
₹126,068 INR
View
A
Retailer 3
-
$1,789 SGD
$1,399 USD
View
Final sale: no returns
B+
Retailer 4
-
$2,101 SGD
$1,643 USD
View
B+
Retailer 5
-
$2,248 SGD
$1,758 USD
View
B+
Retailer 6
-
$2,340 SGD
View
B+
Retailer 7
-
$2,352 SGD
$1,839 USD
View
B+
Retailer 8
-
$2,835 SGD
£1,745 GBP
View
B+
Retailer 9
-
$2,872 SGD
£1,768 GBP
View
B
Retailer 10
-
$3,939 SGD
£2,425 GBP
View
Most Expensive
B
NZ Jewellers
aa8fbb88-aa5f-4323-a04f-31868a33bf3a · Oct 30
$5,484 SGD
$4,288 USD
View
10 more retailers have this diamond
Prices start from $1,686 SGDSave up to $3,798 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
$1,686 SGD