CaratHunter
Plans
Marquise|Natural|GIA

1.21ct I SI1 Marquise Natural Diamond

GD • I/SI1 • GIA 1558196256

Certificate GIA 1558196256

Diamond specifications and retailer prices

From $9,281 NZD
As of November 5, 2026
Save $2,341 NZD (20%) vs most expensive(unlock to see where)
3 retailers carry this diamond
Most expensive: $11,622 NZD at 77 Diamonds · As of November 7, 2026
View at 77 Diamonds

About this 1.21ct natural marquise diamond

This 1.21ct natural marquise sits in the classic one-carat band, graded I colour (near-colourless) and SI1 clarity (slightly-included), with a standard cut grade stated by the retailer rather than the lab and certified by GIA 1558196256. Listed at 3 retailers as of November 5, 2026, with prices from $9,281 to $11,622, a $2,341 spread on the same certified stone. 77 Diamonds lists it at $11,622. 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

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

Specifications

Cut (retailer stated)Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle41.51°
Pavilion angle41.34°
OriginNatural
Grading LabGIA
CertificateGIA 1558196256
Dimensions9.88 × 5.41 × 3.63 mm
L/W Ratio1.83
Culet sizeNone
Top View
9.88 mm5.41 mm1.21 ctI / SI1
OriginNatural
CutGood
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 1558196256
Side View
Table 64.0%Crown 41.51°Girdle: STK-VTKPavilion 41.34°Culet: NoneDepth 67.0%

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 5
Current: $11,622 NZD|Low: $4,982 NZD|High: $12,023 NZD|Avg: $8,647 NZD|+1.1%
77 Diamonds
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
Retailer 13
November 7, 2026
Retailer 3$4,982 NZD
Retailer 10$6,792 NZD
Retailer 7$7,086 NZD
Retailer 12$7,302 NZD
Retailer 5$7,986 NZD
Retailer 8$8,451 NZD
Retailer 13$8,460 NZD
Retailer 11$8,529 NZD
Retailer 6$9,281 NZD
Retailer 2$10,791 NZD
Retailer 9$11,056 NZD
77 Diamonds$11,622 NZD
Retailer 4$12,023 NZD

36 data points across 13 retailers

3 retailers$9,281 NZD to $11,622 NZD

B
Cheapest Retailer
-
$9,281 NZD
C
Retailer 2
-
$10,791 NZD
View
Most Expensive
C
77 Diamonds
MQMBY8VBCHFH · Nov 7
$11,622 NZD
£5,073 GBP
View
2 more retailers have this diamond
Prices start from $9,281 NZDSave up to $2,341 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 Marquise
$9,281 NZD