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Round|Natural|GIA

1.20ct J SI1 Round Natural Diamond

EX • J/SI1 • GIA 2554908315

Certificate GIA 2554908315

Diamond specifications and retailer prices

From $3,007 NZD
As of November 5, 2026
Save $2,675 NZD (47%) vs most expensive(unlock to see where)
8 retailers carry this diamond
Most expensive: $5,682 NZD at Wholesale Diamonds Direct · As of November 6, 2026
View at Wholesale Diamonds Direct

About this 1.2ct natural round diamond

This 1.2ct natural round sits in the classic one-carat band, graded J colour (near-colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by GIA 2554908315. Listed at 8 retailers as of November 5, 2026, with prices from $3,007 to $5,682, a $2,675 spread on the same certified stone. Wholesale Diamonds Direct lists it at $5,682. 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
J
Colour
SI1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle36°
Pavilion angle40.6°
OriginNatural
Grading LabGIA
CertificateGIA 2554908315
Dimensions6.80 × 6.76 × 4.15 mm
L/W Ratio1.01
Culet sizeNone
Top View
6.80 mm6.76 mm1.20 ctJ / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 2554908315
Side View
Table 59.0%Crown 36°Girdle: MED-STKPavilion 40.6°Culet: NDepth 61.3%

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 5
Current: $3,436 NZD|Low: $2,989 NZD|High: $6,196 NZD|Avg: $4,497 NZD|-10.5%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Wholesale Diamonds Direct
November 6, 2026
Retailer 3$3,007 NZD
Retailer 1$3,436 NZD
Retailer 2$3,503 NZD
Retailer 7$3,774 NZD
Retailer 4$4,374 NZD
Retailer 6$4,425 NZD
Retailer 8$5,251 NZD
Retailer 5$5,282 NZD
Wholesale Diamonds Direct$5,682 NZD

29 data points across 9 retailers

8 retailers$3,007 NZD to $5,682 NZD

A
Cheapest Retailer
-
$3,007 NZD
A
Retailer 2
-
$3,436 NZD
View
A
Retailer 3
-
$3,503 NZD
View
A
Retailer 4
-
$3,774 NZD
View
B+
Retailer 5
-
$4,374 NZD
View
B+
Retailer 6
-
$4,425 NZD
View
B
Retailer 7
-
$5,282 NZD
View
Most Expensive
B
Wholesale Diamonds Direct
611346681 · Nov 6
$5,682 NZD
$3,150 USD
View
7 more retailers have this diamond
Prices start from $3,007 NZDSave up to $2,675 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 Round
$3,007 NZD