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Cushion|Natural|GIA

1.09ct K SI1 Cushion Natural Diamond

VG • K/SI1 • GIA 2106631020

Certificate GIA 2106631020

Diamond specifications and retailer prices

From $3,620 NZD
As of November 6, 2026
Save $2,093 NZD (37%) vs most expensive(unlock to see where)
4 retailers carry this diamond
Most expensive: $5,714 NZD at MOH London · As of November 2, 2026
View at MOH London

About this 1.09ct natural cushion diamond

This 1.09ct natural cushion sits in the classic one-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 2106631020. Listed at 4 retailers as of November 2, 2026, with prices from $3,620 to $5,714, a $2,093 spread on the same certified stone. MOH London lists it at $5,714. 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

1.09
Carat
K
Colour
SI1
Clarity
Very Good
Cut (retailer stated)

Specifications

Cut (retailer stated)Very Good
PolishVery Good
SymmetryGood
FluorescenceStrong
OriginNatural
Grading LabGIA
CertificateGIA 2106631020
Dimensions6.42 × 5.43 × 3.81 mm
L/W Ratio1.18
Girdle conditionFaceted
Key to symbols
Crystal, Feather
Top View
6.42 mm5.43 mm1.09 ctK / SI1
OriginNatural
CutVery Good
PolishVery Good
SymmetryGood
FluorescenceStrong
CertificateGIA 2106631020
Side View
Table 63.0%CrownGirdle: THK-VTKPavilionCulet: NoneDepth 70.2%

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: Nov 6
Current: $5,714 NZD|Low: $2,922 NZD|High: $5,785 NZD|Avg: $4,453 NZD|-0.2%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
November 6, 2026
Retailer 4$3,049 NZD
Retailer 3$3,620 NZD
Retailer 2$4,147 NZD
MOH London$5,714 NZD
Retailer 5$5,785 NZD

40 data points across 5 retailers

4 retailers$3,620 NZD to $5,714 NZD

Retailer 1
-
$3,049 NZD
Price last confirmed 17 days ago
B
Retailer 2
-
$3,620 NZD
View
B
Retailer 3
-
$4,147 NZD
View
Most Expensive
C
MOH London
7093200C7 · Nov 2
$5,714 NZD
£2,494 GBP
View
3 more retailers have this diamond
Prices start from $3,620 NZDSave up to $2,093 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
1.09ct Cushion
$3,620 NZD