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Cushion|Natural|GIA

0.51ct E SI2 Cushion Natural Diamond

GD • E/SI2 • GIA 1299073936

Certificate GIA 1299073936

Diamond specifications and retailer prices

From $1,087 SGD
$851 USD
As of October 28, 2026
Save $639 SGD (37%) vs most expensive(unlock to see where)
9 retailers carry this diamond
Most expensive: $1,726 SGD at 77 Diamonds · As of October 30, 2026
View at 77 Diamonds

About this 0.51ct natural cushion diamond

This 0.51ct natural cushion sits in the half to three-quarter carat band, graded E colour (colourless) and SI2 clarity (slightly-included), with a standard cut grade stated by the retailer rather than the lab and certified by GIA 1299073936. Listed at 9 retailers as of October 28, 2026, with prices from $1,087 to $1,726, a $639 spread on the same certified stone. 77 Diamonds lists it at $1,726. 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
E
Colour
SI2
Clarity
Good
Cut (retailer stated)

Specifications

Cut (retailer stated)Good
PolishVery Good
SymmetryGood
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 1299073936
Dimensions4.75 × 4.59 × 3.10 mm
L/W Ratio1.03
Culet sizeNone
Top View
4.75 mm4.59 mm0.51 ctE / SI2
OriginNatural
CutGood
PolishVery Good
SymmetryGood
FluorescenceNone
CertificateGIA 1299073936
Side View
Table 66.0%CrownGirdle: STK-VTKPavilionCulet: NoneDepth 67.6%

Caratlytics Score

How it works →
B
Good
Decent quality, room for better deals
Unlock full score analysis
See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Oct 28
Current: $1,726 SGD|Low: $1,087 SGD|High: $1,778 SGD|Avg: $1,337 SGD|+2.3%
77 Diamonds
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
October 30, 2026
Retailer 6$1,087 SGD
Retailer 2$1,093 SGD
Retailer 5$1,134 SGD
Retailer 4$1,160 SGD
Retailer 7$1,262 SGD
Retailer 3$1,296 SGD
Retailer 8$1,393 SGD
Retailer 9$1,393 SGD
77 Diamonds$1,726 SGD
Retailer 10$1,778 SGD

36 data points across 10 retailers

9 retailers$1,087 SGD to $1,726 SGD

B
Cheapest Retailer
-
$1,087 SGD
$851 USD
B
Retailer 2
-
$1,134 SGD
$887 USD
View
B
Retailer 3
-
$1,160 SGD
$907 USD
View
B
Retailer 4
-
$1,262 SGD
$987 USD
View
B
Retailer 5
-
$1,296 SGD
$1,014 USD
View
B
Retailer 6
-
$1,393 SGD
$1,090 USD
View
B
Retailer 7
-
$1,393 SGD
$1,090 USD
View
B
Retailer 8
-
$1,445 SGD
$1,130 USD
View
Most Expensive
C
77 Diamonds
CUSZBKWDVSAU · Oct 30
$1,726 SGD
£1,063 GBP
View
8 more retailers have this diamond
Prices start from $1,087 SGDSave up to $639 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 Cushion
$1,087 SGD