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Cushion|Natural|GIA

1.20ct D SI1 Cushion Natural Diamond

ID • D/SI1 • GIA 6551490092

Certificate GIA 6551490092

Diamond specifications and retailer prices

From $4,432 NZD
As of November 6, 2026
Save $5,419 NZD (55%) vs most expensive(unlock to see where)
16 retailers carry this diamond
Most expensive: $9,851 NZD at MOH London · As of November 2, 2026
View at MOH London

About this 1.2ct natural cushion diamond

This 1.2ct natural cushion sits in the classic one-carat band, graded D colour (colourless) and SI1 clarity (slightly-included), with a top-tier cut grade stated by the retailer rather than the lab and certified by GIA 6551490092. Listed at 16 retailers as of November 2, 2026, with prices from $4,432 to $9,851, a $5,419 spread on the same certified stone. MOH London lists it at $9,851. SI-grade stones are eye-clean roughly 60 to 70% of the time at this carat range. Check the inclusion plot on the cert and ask the retailer for high-resolution video before buying.

The 4Cs

1.20
Carat
D
Colour
SI1
Clarity
Ideal
Cut (retailer stated)

Specifications

Cut (retailer stated)Ideal
PolishExcellent
SymmetryVery Good
FluorescenceMedium
OriginNatural
Grading LabGIA
CertificateGIA 6551490092
Dimensions7.11 × 5.31 × 3.59 mm
L/W Ratio1.34
Girdle conditionFaceted
Culet sizeNone
Key to symbols
Crystal, Needle
Top View
7.11 mm5.31 mm1.20 ctD / SI1
OriginNatural
CutIdeal
PolishExcellent
SymmetryVery Good
FluorescenceMedium
CertificateGIA 6551490092
Side View
Table 68.0%CrownGirdle: MED-THKPavilionCulet: NoneDepth 67.7%

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: $9,851 NZD|Low: $4,409 NZD|High: $10,280 NZD|Avg: $6,352 NZD|-3.9%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
November 6, 2026
Retailer 10$4,432 NZD
Retailer 2$4,638 NZD
Retailer 3$5,311 NZD
Retailer 9$5,340 NZD
Retailer 11$5,437 NZD
Retailer 7$6,059 NZD
Retailer 6$6,173 NZD
Retailer 12$6,314 NZD
Retailer 4$6,487 NZD
Retailer 5$6,858 NZD
Retailer 8$7,190 NZD
MOH London$9,851 NZD

31 data points across 12 retailers

16 retailers$4,432 NZD to $9,851 NZD

A
Cheapest Retailer
-
$4,432 NZD
A
Retailer 2
-
$4,638 NZD
View
B+
Retailer 3
-
$5,311 NZD
View
B+
Retailer 4
-
$5,340 NZD
View
B+
Retailer 5
-
$5,437 NZD
View
Final sale: no returns
B+
Retailer 6
-
$5,617 NZD
View
B+
Retailer 7
-
$5,619 NZD
View
B+
Retailer 8
-
$6,000 NZD
View
B+
Retailer 9
-
$6,059 NZD
View
Retailer 10
-
$6,074 NZD
View
Price last confirmed 22 days ago
B+
Retailer 11
-
$6,173 NZD
View
B+
Retailer 12
-
$6,314 NZD
View
Retailer 13
-
$6,487 NZD
View
Price last confirmed 31 days ago
B+
Retailer 14
-
$6,858 NZD
View
B+
Retailer 15
-
$7,190 NZD
View
Most Expensive
B
MOH London
DDFA2EE84 · Nov 2
$9,851 NZD
£4,300 GBP
View
15 more retailers have this diamond
Prices start from $4,432 NZDSave up to $5,419 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
1.20ct Cushion
$4,432 NZD