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Cushion|Natural|GIA

0.52ct K SI1 Cushion Natural Diamond

VG • K/SI1 • GIA 1378435950

Certificate GIA 1378435950

Diamond specifications and retailer prices

From $460 NZD
As of November 6, 2026
Save $747 NZD (62%) vs most expensive(unlock to see where)
5 retailers carry this diamond
Most expensive: $1,535 NZD at MOH London · As of October 18, 2026
View at MOH London

About this 0.52ct natural cushion diamond

This 0.52ct natural cushion sits in the half to three-quarter carat band, graded K colour (faint-tinted) and SI1 clarity (slightly-included), with a very-good cut grade stated by the retailer rather than the lab and certified by GIA 1378435950. Listed at 5 retailers as of November 6, 2026, with a 162% spread between the cheapest and most expensive listing. That is exactly the kind of price-discovery gap Carat Hunter was built to surface. 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

0.52
Carat
K
Colour
SI1
Clarity
Very Good
Cut (retailer stated)

Specifications

Cut (retailer stated)Very Good
PolishExcellent
SymmetryVery Good
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 1378435950
Dimensions4.63 × 4.40 × 3.06 mm
L/W Ratio1.05
Girdle conditionFaceted
Culet sizeNone
Key to symbols
Crystal
Top View
4.63 mm4.40 mm0.52 ctK / SI1
OriginNatural
CutVery Good
PolishExcellent
SymmetryVery Good
FluorescenceNone
CertificateGIA 1378435950
Side View
Table 55.0%CrownGirdle: THN-THKPavilionCulet: NoneDepth 69.5%

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 6
Current: $1,535 NZD|Low: $460 NZD|High: $1,535 NZD|Avg: $1,016 NZD|+0.4%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
November 6, 2026
Retailer 2$460 NZD
Retailer 3$850 NZD
Retailer 5$929 NZD
Retailer 4$1,207 NZD
MOH London$1,535 NZD

45 data points across 5 retailers

5 retailers$460 NZD to $1,207 NZD

A
Cheapest Retailer
-
$460 NZD
B+
Retailer 2
-
$850 NZD
View
B+
Retailer 3
-
$929 NZD
View
B
Retailer 4
-
$1,207 NZD
View
Most Expensive
MOH London
CD12B2A73 · Oct 18
$1,535 NZD
£670 GBP
View
Price last confirmed 19 days ago
4 more retailers have this diamond
Prices start from $460 NZDSave up to $747 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.

A
0.52ct Cushion
$460 NZD