Round|Natural|GIA

1.20ct I SI1 Round Natural Diamond

EX • I/SI1 • GIA 6565096000

Certificate GIA 6565096000

Diamond specifications and retailer prices

From $2,342 USD
HK$18,300 HKD
As of October 30, 2026
Save $2,716 USD (54%) vs most expensive(unlock to see where)
29 retailers carry this diamond
Most expensive: $5,535 USD at NZ Jewellers · As of September 21, 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 6565096000. Listed at 29 retailers as of October 29, 2026, with a 116% 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

1.20
Carat
I
Color
SI1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle36°
Pavilion angle40.8°
OriginNatural
Grading LabGIA
CertificateGIA 6565096000
Dimensions6.72 × 6.76 × 4.20 mm
L/W Ratio1.01
Girdle conditionFaceted
Culet sizeNone
Top View
6.72 mm6.76 mm1.20 ctI / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 6565096000
Side View
Table 58.0%Crown 36°Girdle: Slightly ThickPavilion 40.8°Culet: NoneDepth 62.4%

Caratlytics Score

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A
Excellent
Excellent quality and great value
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See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Oct 30
Current: $3,438 USD|Low: $2,266 USD|High: $6,576 USD|Avg: $3,270 USD|+0.4%
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
Retailer 15
Retailer 16
Retailer 17
Retailer 18
Retailer 19
Retailer 20
Retailer 21
October 30, 2026
Retailer 17$2,342 USD
Retailer 10$2,354 USD
Retailer 19$2,532 USD
Retailer 12$2,576 USD
Retailer 16$2,610 USD
Retailer 15$2,617 USD
Retailer 8$2,915 USD
Retailer 21$3,012 USD
Retailer 11$3,212 USD
Retailer 18$3,220 USD
Retailer 20$3,220 USD
Retailer 3$3,241 USD
Retailer 2$3,330 USD
Retailer 14$3,346 USD
Retailer 1$3,438 USD
Retailer 6$3,493 USD
Retailer 4$3,499 USD
Retailer 9$3,608 USD
Retailer 5$3,685 USD
Retailer 13$3,790 USD
Retailer 7$5,058 USD

21 data points across 21 retailers

29 retailers$2,342 USD to $5,058 USD

A
Cheapest Retailer
-
$2,342 USD
HK$18,300 HKD
Retailer 2
-
$2,354 USD
₹224,172 INR
View
Price last confirmed 15 days ago
A
Retailer 3
-
$2,532 USD
View
A
Retailer 4
-
$2,576 USD
View
A
Retailer 5
-
$2,610 USD
View
Final sale: no returns
A
Retailer 6
-
$2,617 USD
A$4,026 AUD
View
A
Retailer 7
-
$2,915 USD
View
B+
Retailer 8
-
$3,012 USD
£2,372 GBP
View
B+
Retailer 9
-
$3,041 USD
A$4,678 AUD
View
Retailer 10
-
$3,098 USD
View
Price last confirmed 15 days ago
Retailer 11
-
$3,156 USD
View
Price last confirmed 17 days ago
Retailer 12
-
$3,177 USD
View
Price last confirmed 37 days ago
Retailer 13
-
$3,212 USD
SGD 4,341 SGD
View
Price last confirmed 15 days ago
Retailer 14
-
$3,217 USD
View
Price last confirmed 15 days ago
B+
Retailer 15
-
$3,220 USD
View
B+
Retailer 16
-
$3,220 USD
View
B+
Retailer 17
-
$3,241 USD
£2,552 GBP
View
B+
Retailer 18
-
$3,260 USD
View
B+
Retailer 19
-
$3,330 USD
View
Retailer 20
-
$3,346 USD
A$5,148 AUD
View
Price last confirmed 27 days ago
B+
Retailer 21
-
$3,438 USD
€3,274 EUR
View
B+
Retailer 22
-
$3,499 USD
View
Retailer 23
-
$3,575 USD
View
Price last confirmed 15 days ago
Retailer 24
-
$3,666 USD
View
Price last confirmed 39 days ago
B
Retailer 25
-
$3,685 USD
View
Retailer 26
-
$3,790 USD
ZAR 61,232 ZAR
View
Price last confirmed 19 days ago
B
Retailer 27
-
$5,058 USD
£3,983 GBP
View
Retailer 28
-
$5,498 USD
View
Price last confirmed 17 days ago
Most Expensive
NZ Jewellers
497a3de9-1854-4a3a-a2ce-57aeb4a2a35d · Sep 21
$5,535 USD
View
Price last confirmed 39 days ago
28 more retailers have this diamond
Prices start from $2,342 USDSave up to $2,716 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
$2,342 USD