CaratHunter
Plans
Marquise|Natural|GIA

0.51ct G SI2 Marquise Natural Diamond

VG • G/SI2 • GIA 6552497564

Certificate GIA 6552497564

Diamond specifications and retailer prices

From $724 SGD
$566 USD
As of November 2, 2026
Save $1,989 SGD (73%) vs most expensive(unlock to see where)
21 retailers carry this diamond
Most expensive: $2,713 SGD at NZ Jewellers · As of October 30, 2026
View at NZ Jewellers

About this 0.51ct natural marquise diamond

This 0.51ct natural marquise sits in the half to three-quarter carat band, graded G colour (near-colourless) and SI2 clarity (slightly-included), with a very-good cut grade stated by the retailer rather than the lab and certified by GIA 6552497564. Listed at 21 retailers as of October 30, 2026, with prices from $724 to $2,713, a $1,989 spread on the same certified stone. NZ Jewellers lists it at $2,713. Cut grade matters more than carat or clarity for visible brilliance. If you can shift budget toward an Excellent or Ideal cut, do it before chasing higher colour or clarity.

The 4Cs

0.51
Carat
G
Colour
SI2
Clarity
Very Good
Cut (retailer stated)

Specifications

Cut (retailer stated)Very Good
PolishExcellent
SymmetryVery Good
FluorescenceNone
Crown angle36.6°
Pavilion angle41.5°
OriginNatural
Grading LabGIA
CertificateGIA 6552497564
Dimensions7.97 × 4.23 × 2.69 mm
L/W Ratio1.88
Girdle conditionFaceted
Top View
7.97 mm4.23 mm0.51 ctG / SI2
OriginNatural
CutVery Good
PolishExcellent
SymmetryVery Good
FluorescenceNone
CertificateGIA 6552497564
Side View
Table 61.0%Crown 36.6°Girdle: MED-THKPavilion 41.5°Culet: NDepth 63.6%

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 2
Current: $2,713 SGD|Low: $621 SGD|High: $2,793 SGD|Avg: $1,060 SGD|-2.9%
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
Retailer 14
Retailer 15
Retailer 16
Retailer 17
Retailer 18
Retailer 19
Retailer 20
November 2, 2026
Retailer 10$724 SGD
Retailer 15$741 SGD
Retailer 7$784 SGD
Retailer 11$785 SGD
Retailer 9$844 SGD
Retailer 12$844 SGD
Retailer 14$864 SGD
Retailer 17$878 SGD
Retailer 6$887 SGD
Retailer 4$904 SGD
Retailer 8$914 SGD
Retailer 5$959 SGD
Retailer 19$959 SGD
Retailer 20$997 SGD
Retailer 2$1,033 SGD
Retailer 13$1,058 SGD
Retailer 3$1,110 SGD
Retailer 18$1,158 SGD
Retailer 16$1,997 SGD
NZ Jewellers$2,713 SGD

29 data points across 20 retailers

21 retailers$724 SGD to $2,713 SGD

A
Cheapest Retailer
-
$724 SGD
$566 USD
Final sale: no returns
A
Retailer 2
-
$741 SGD
$580 USD
View
A
Retailer 3
-
$784 SGD
$613 USD
View
B+
Retailer 4
-
$785 SGD
HK$4,800 HKD
View
A
Retailer 5
-
$844 SGD
$660 USD
View
A
Retailer 6
-
$844 SGD
$660 USD
View
A
Retailer 7
-
$864 SGD
$676 USD
View
A
Retailer 8
-
$878 SGD
$687 USD
View
A
Retailer 9
-
$887 SGD
$694 USD
View
B+
Retailer 10
-
$904 SGD
$707 USD
View
A
Retailer 11
-
$914 SGD
$715 USD
View
B+
Retailer 12
-
$959 SGD
$750 USD
View
B+
Retailer 13
-
$959 SGD
$750 USD
View
B+
Retailer 14
-
$997 SGD
$780 USD
View
B+
Retailer 15
-
$1,033 SGD
£636 GBP
View
B+
Retailer 16
-
$1,058 SGD
£652 GBP
View
B+
Retailer 17
-
$1,110 SGD
$868 USD
View
Retailer 18
-
$1,154 SGD
£711 GBP
View
Price last confirmed 36 days ago
B+
Retailer 19
-
$1,158 SGD
€863 EUR
View
B
Retailer 20
-
$1,997 SGD
£1,230 GBP
View
Most Expensive
B
NZ Jewellers
76c2553c-4cf3-400f-8ed5-5859e1cdf99e · Oct 30
$2,713 SGD
$2,122 USD
View
20 more retailers have this diamond
Prices start from $724 SGDSave up to $1,989 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
0.51ct Marquise
$724 SGD