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Cushion|Lab Grown|GIA

3.13ct E SI1 Cushion Lab Grown Diamond

VG • E/SI1

Diamond specifications and retailer prices

From $2,040 NZD
As of November 6, 2026
Save $7,062 NZD (78%) vs most expensive(unlock to see where)
4 retailers carry this diamond
Most expensive: $9,102 NZD at Washington Diamond · As of November 6, 2026
View at Washington Diamond

About this 3.13ct lab-grown cushion diamond

This 3.13ct lab-grown cushion sits in the three to five carat band, graded E colour (colourless) and SI1 clarity (slightly-included), with a very-good cut grade stated by the retailer rather than the lab and certified by GIA. Listed at 4 retailers as of November 6, 2026, with prices from $2,040 to $9,102, a $7,062 spread on the same certified stone. Washington Diamond lists it at $9,102. 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

3.13
Carat
E
Colour
SI1
Clarity
Very Good
Cut (retailer stated)

Specifications

Cut (retailer stated)Very Good
PolishExcellent
SymmetryVery Good
FluorescenceNone
OriginLab Grown
Grading LabGIA
Dimensions9.25 × 8.01 × 5.49 mm
L/W Ratio1.15
Top View
9.25 mm8.01 mm3.13 ctE / SI1
OriginLab Grown
CutVery Good
PolishExcellent
SymmetryVery Good
FluorescenceNone
CertificateGIA
Side View
Table 62.0%CrownGirdle: MediumPavilionCulet: NoneDepth 68.5%

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 6
Current: $2,688 NZD|Low: $2,001 NZD|High: $9,102 NZD|Avg: $4,115 NZD|+1.6%
Retailer 1
Retailer 2
Retailer 3
Washington Diamond
November 6, 2026
Retailer 2$2,040 NZD
Retailer 1$2,688 NZD
Retailer 3$7,508 NZD
Washington Diamond$9,102 NZD

40 data points across 4 retailers

4 retailers$2,040 NZD to $9,102 NZD

B+
Cheapest Retailer
-
$2,040 NZD
B+
Retailer 2
-
$2,688 NZD
View
C
Retailer 3
-
$7,508 NZD
View
Most Expensive
C
Washington Diamond
1986529767 · Nov 6
$9,102 NZD
$5,046 USD
View
3 more retailers have this diamond
Prices start from $2,040 NZDSave up to $7,062 NZD

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+
3.13ct Cushion
$2,040 NZD