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Round|Natural|GIA

1.20ct I SI1 Round Natural Diamond

EX • I/SI1 • GIA 1529681089

Certificate GIA 1529681089

Diamond specifications and retailer prices

From $2,624 USD
HK$20,500 HKD
As of November 1, 2026
Save $3,401 USD (56%) vs most expensive(unlock to see where)
26 retailers carry this diamond
Most expensive: $6,025 USD at NZ Jewellers · As of November 2, 2026
View at NZ Jewellers

About this 1.2ct natural round diamond

This 1.2ct natural round sits in the classic one-carat band, graded I colour (near-colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by GIA 1529681089. Listed at 26 retailers as of November 1, 2026, with prices from $2,624 to $6,025, a $3,401 spread on the same certified stone. NZ Jewellers lists it at $6,025. 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
I
Color
SI1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle36°
Pavilion angle40.6°
OriginNatural
Grading LabGIA
CertificateGIA 1529681089
Dimensions6.76 × 6.72 × 4.23 mm
L/W Ratio1.01
Star length50%
Lower girdle80%
Girdle conditionFaceted
Culet sizeNone
Cert comments
Additional clouds are not shown. Additional pinpoints are not shown.
Key to symbols
Crystal, Cloud, Feather, Needle, Pinpoint
Top View
6.76 mm6.72 mm1.20 ctI / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 1529681089
Side View
Table 57.0%Crown 36°Girdle: STK-STKPavilion 40.6°Culet: NoneDepth 62.8%

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 1
Current: $6,025 USD|Low: $2,598 USD|High: $6,123 USD|Avg: $3,608 USD|-1.6%
NZ Jewellers
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
Retailer 15
Retailer 16
Retailer 17
Retailer 18
Retailer 19
Retailer 20
Retailer 21
Retailer 22
Retailer 23
Retailer 24
November 2, 2026
Retailer 21$2,624 USD
Retailer 3$2,714 USD
Retailer 5$2,725 USD
Retailer 22$2,742 USD
Retailer 24$2,762 USD
Retailer 11$2,837 USD
Retailer 17$2,865 USD
Retailer 6$2,889 USD
Retailer 8$3,045 USD
Retailer 7$3,133 USD
Retailer 12$3,133 USD
Retailer 15$3,202 USD
Retailer 10$3,254 USD
Retailer 2$3,327 USD
Retailer 9$3,560 USD
Retailer 14$3,560 USD
Retailer 13$3,592 USD
Retailer 23$3,615 USD
Retailer 4$3,680 USD
Retailer 18$3,796 USD
Retailer 20$4,251 USD
Retailer 16$5,074 USD
Retailer 19$5,784 USD
NZ Jewellers$6,025 USD

21 data points across 24 retailers

26 retailers$2,624 USD to $6,025 USD

A
Cheapest Retailer
-
$2,624 USD
HK$20,500 HKD
A
Retailer 2
-
$2,714 USD
View
A
Retailer 3
-
$2,725 USD
View
A
Retailer 4
-
$2,742 USD
View
A
Retailer 5
-
$2,762 USD
View
A
Retailer 6
-
$2,837 USD
View
Final sale: no returns
Retailer 7
-
$2,865 USD
View
Price last confirmed 12 days ago
A
Retailer 8
-
$2,889 USD
A$4,445 AUD
View
B+
Retailer 9
-
$3,045 USD
View
B+
Retailer 10
-
$3,133 USD
View
B+
Retailer 11
-
$3,133 USD
View
B+
Retailer 12
-
$3,202 USD
CA$4,448 CAD
View
B+
Retailer 13
-
$3,254 USD
View
B+
Retailer 14
-
$3,327 USD
£2,620 GBP
View
B+
Retailer 15
-
$3,560 USD
View
B+
Retailer 16
-
$3,560 USD
View
B+
Retailer 17
-
$3,592 USD
£2,829 GBP
View
B+
Retailer 18
-
$3,615 USD
View
B+
Retailer 19
-
$3,680 USD
View
Retailer 20
-
$3,738 USD
A$5,751 AUD
View
Price last confirmed 29 days ago
B+
Retailer 21
-
$3,796 USD
€3,615 EUR
View
Retailer 22
-
$3,951 USD
View
Price last confirmed 10 days ago
B+
Retailer 23
-
$4,251 USD
ZAR 68,675 ZAR
View
B
Retailer 24
-
$5,074 USD
View
Price last confirmed 7 days ago
B
Retailer 25
-
$5,784 USD
£4,554 GBP
View
Most Expensive
B
NZ Jewellers
6ce402cb-b0dc-4558-a70e-96c4bf8bd3c9 · Nov 2
$6,025 USD
View
25 more retailers have this diamond
Prices start from $2,624 USDSave up to $3,401 USD

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
$2,624 USD