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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 $851 USD
As of October 28, 2026
Save $495 USD (37%) vs most expensive(unlock to see where)
9 retailers carry this diamond
Most expensive: $1,346 USD at 77 Diamonds · As of October 29, 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 $851 to $1,346, a $495 spread on the same certified stone. 77 Diamonds lists it at $1,346. 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
Color
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: $1,346 USD|Low: $851 USD|High: $1,391 USD|Avg: $1,046 USD|+2.0%
77 Diamonds
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
October 29, 2026
Retailer 6$851 USD
Retailer 2$855 USD
Retailer 5$887 USD
Retailer 4$907 USD
Retailer 7$987 USD
Retailer 3$1,014 USD
Retailer 8$1,090 USD
Retailer 9$1,090 USD
77 Diamonds$1,346 USD
Retailer 10$1,391 USD

35 data points across 10 retailers

9 retailers$851 USD to $1,346 USD

B
Cheapest Retailer
-
$851 USD
B
Retailer 2
-
$887 USD
View
B
Retailer 3
-
$907 USD
View
B
Retailer 4
-
$987 USD
View
B
Retailer 5
-
$1,014 USD
View
B
Retailer 6
-
$1,090 USD
View
B
Retailer 7
-
$1,090 USD
View
B
Retailer 8
-
$1,130 USD
View
Most Expensive
B
77 Diamonds
CUSZBKWDVSAU · Oct 29
$1,346 USD
£1,060 GBP
View
8 more retailers have this diamond
Prices start from $851 USDSave up to $495 USD

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
$851 USD