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Marquise|Natural|GIA

0.51ct I SI2 Marquise Natural Diamond

VG • I/SI2 • GIA 7372661674

Certificate GIA 7372661674

Diamond specifications and retailer prices

From $978 SGD
As of November 4, 2026
Save $552 SGD (36%) vs most expensive(unlock to see where)
4 retailers carry this diamond
Most expensive: $1,530 SGD at 77 Diamonds · As of November 6, 2026
View at 77 Diamonds

About this 0.51ct natural marquise diamond

This 0.51ct natural marquise sits in the half to three-quarter carat band, graded I 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 7372661674. Listed at 4 retailers as of November 4, 2026, with prices from $978 to $1,530, a $552 spread on the same certified stone. 77 Diamonds lists it at $1,530. 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
I
Colour
SI2
Clarity
Very Good
Cut (retailer stated)

Specifications

Cut (retailer stated)Very Good
PolishVery Good
SymmetryVery Good
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 7372661674
Dimensions8.56 × 3.99 × 2.55 mm
L/W Ratio2.15
Top View
8.56 mm3.99 mm0.51 ctI / SI2
OriginNatural
CutVery Good
PolishVery Good
SymmetryVery Good
FluorescenceNone
CertificateGIA 7372661674
Side View
Table 57.0%CrownGirdle: STK-ETKPavilionCulet: NoneDepth 63.9%

Caratlytics Score

How it works →
B+
Very Good
Strong quality and value balance
Unlock full score analysis
See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 4
Current: $1,530 SGD|Low: $1,053 SGD|High: $1,556 SGD|Avg: $1,228 SGD|-0.5%
77 Diamonds
Retailer 2
Retailer 3
November 6, 2026
Retailer 3$1,053 SGD
Retailer 2$1,086 SGD
77 Diamonds$1,530 SGD

35 data points across 3 retailers

4 retailers$978 SGD to $1,530 SGD

B+
Cheapest Retailer
-
$978 SGD
Retailer 2
-
$1,053 SGD
View
Price last confirmed 72 days ago
B
Retailer 3
-
$1,086 SGD
View
Most Expensive
B
77 Diamonds
MQDHWCMXFVUA · Nov 6
$1,530 SGD
£940 GBP
View
3 more retailers have this diamond
Prices start from $978 SGDSave up to $552 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.

B+
0.51ct Marquise
$978 SGD