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Cushion|Natural|GIA

1.21ct I SI1 Cushion Natural Diamond

EX • I/SI1 • GIA 5242003538

Certificate GIA 5242003538

Diamond specifications and retailer prices

From $3,996 NZD
As of November 7, 2026
Save $3,166 NZD (44%) vs most expensive(unlock to see where)
12 retailers carry this diamond
Most expensive: $10,889 NZD at Reve Diamonds · As of October 16, 2026
View at Reve Diamonds

About this 1.21ct natural cushion diamond

This 1.21ct natural cushion sits in the classic one-carat band, graded I colour (near-colourless) and SI1 clarity (slightly-included), with a top-tier cut grade stated by the retailer rather than the lab and certified by GIA 5242003538. Listed at 12 retailers as of November 5, 2026, with a 79% spread between the cheapest and most expensive listing. That is exactly the kind of price-discovery gap Carat Hunter was built to surface. 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

1.21
Carat
I
Colour
SI1
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryExcellent
FluorescenceFaint
Pavilion angle36.29°
OriginNatural
Grading LabGIA
CertificateGIA 5242003538
Dimensions7.05 × 5.51 × 3.84 mm
L/W Ratio1.28
Key to symbols
Crystal, Feather, Needle
Top View
7.05 mm5.51 mm1.21 ctI / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceFaint
CertificateGIA 5242003538
Side View
Table 61.0%CrownGirdle: STK-VTKPavilion 36.29°Culet: NoneDepth 69.7%

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 7
Current: $7,161 NZD|Low: $2,632 NZD|High: $11,549 NZD|Avg: $5,544 NZD|+68.4%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
Retailer 13
Retailer 14
Reve Diamonds
October 29, 2026
Retailer 2$2,632 NZD
Retailer 4$3,198 NZD
Retailer 6$3,510 NZD
Retailer 5$3,702 NZD
Retailer 7$5,334 NZD
Retailer 3$5,531 NZD
Retailer 14$6,420 NZD
Retailer 1$7,161 NZD
Retailer 13$9,057 NZD
Retailer 9$9,250 NZD
Retailer 10$9,299 NZD
Retailer 8$9,894 NZD
Retailer 12$10,445 NZD
Reve Diamonds$10,889 NZD
Retailer 11$11,549 NZD

33 data points across 15 retailers

12 retailers$3,996 NZD to $7,161 NZD

Retailer 1
-
$2,632 NZD
Price last confirmed 24 days ago
Retailer 2
-
$3,198 NZD
View
Price last confirmed 24 days ago
Retailer 3
-
$3,702 NZD
View
Price last confirmed 23 days ago
B+
Retailer 4
-
$3,996 NZD
View
Retailer 5
-
$5,267 NZD
View
Price last confirmed 14 days ago
Retailer 6
-
$5,334 NZD
View
Price last confirmed 12 days ago
Retailer 7
-
$5,531 NZD
View
Price last confirmed 24 days ago
Retailer 8
-
$6,420 NZD
View
Price last confirmed 23 days ago
B
Retailer 9
-
$7,161 NZD
View
Retailer 10
-
$9,057 NZD
View
Price last confirmed 22 days ago
Retailer 11
-
$9,250 NZD
View
Price last confirmed 22 days ago
Most Expensive
Reve Diamonds
E0B44E40B · Oct 16
$10,889 NZD
$6,036 USD
View
Price last confirmed 21 days ago
11 more retailers have this diamond
Prices start from $3,996 NZDSave up to $3,166 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+
1.21ct Cushion
$3,996 NZD