Round|Natural|GIA

1.20ct H SI1 Round Natural Diamond

EX • H/SI1 • GIA 2547966412

Certificate GIA 2547966412

Diamond specifications and retailer prices

From $3,394 USD
As of November 5, 2026
Save $146 USD (4%) vs most expensive(unlock to see where)
23 retailers carry this diamond
Most expensive: $6,719 USD at NZ Jewellers · As of September 25, 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 H colour (near-colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by GIA 2547966412. Listed at 23 retailers as of November 5, 2026, with a relatively tight 4% spread, which is unusual at this carat range and suggests competitive pricing across the listings. 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
H
Color
SI1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle35°
Pavilion angle41°
OriginNatural
Grading LabGIA
CertificateGIA 2547966412
Dimensions6.80 × 6.83 × 4.20 mm
L/W Ratio1.00
Top View
6.80 mm6.83 mm1.20 ctH / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 2547966412
Side View
Table 58.0%Crown 35°Girdle: MED-STKPavilion 41°Culet: NoneDepth 61.5%

Caratlytics Score

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B+
Very Good
Strong quality and value balance
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Price History

Last verified: Nov 5
Current: $3,394 USD|Low: $2,160 USD|High: $6,623 USD|Avg: $4,077 USD|+0.2%
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
November 5, 2026
Retailer 3$2,160 USD
Retailer 13$3,034 USD
Retailer 1$3,394 USD
Retailer 5$3,443 USD
Retailer 4$3,523 USD
Retailer 16$3,650 USD
Retailer 10$3,677 USD
Retailer 11$3,832 USD
Retailer 6$3,963 USD
Retailer 7$4,088 USD
Retailer 8$4,115 USD
Retailer 2$4,400 USD
Retailer 12$4,449 USD
Retailer 9$4,648 USD
Retailer 14$6,393 USD
Retailer 15$6,572 USD

27 data points across 16 retailers

23 retailers$3,394 USD to $3,540 USD

Retailer 1
-
$2,160 USD
Price last confirmed 23 days ago
Retailer 2
-
$2,880 USD
View
Price last confirmed 12 days ago
Retailer 3
-
$3,034 USD
View
Price last confirmed 12 days ago
B+
Retailer 4
-
$3,394 USD
View
Retailer 5
-
$3,443 USD
View
Price last confirmed 11 days ago
Retailer 6
-
$3,448 USD
View
Price last confirmed 22 days ago
B+
Retailer 7
-
$3,540 USD
View
Retailer 8
-
$3,650 USD
View
Price last confirmed 10 days ago
Retailer 9
-
$3,668 USD
View
Price last confirmed 12 days ago
Retailer 10
-
$3,817 USD
View
Price last confirmed 27 days ago
Retailer 11
-
$3,817 USD
View
Price last confirmed 25 days ago
Retailer 12
-
$3,832 USD
View
Price last confirmed 11 days ago
Retailer 13
-
$3,857 USD
View
Price last confirmed 39 days ago
Retailer 14
-
$3,963 USD
View
Price last confirmed 12 days ago
Retailer 15
-
$4,088 USD
View
Price last confirmed 29 days ago
Retailer 16
-
$4,115 USD
View
Price last confirmed 12 days ago
Retailer 17
-
$4,400 USD
View
Price last confirmed 12 days ago
Retailer 18
-
$4,449 USD
View
Price last confirmed 12 days ago
Retailer 19
-
$4,450 USD
View
Price last confirmed 39 days ago
Retailer 20
-
$4,648 USD
View
Price last confirmed 10 days ago
Retailer 21
-
$6,393 USD
View
Price last confirmed 11 days ago
Retailer 22
-
$6,572 USD
View
Price last confirmed 12 days ago
Most Expensive
NZ Jewellers
ca5f900b-11a3-46c8-85ef-62cf814c45aa · Sep 25
$6,719 USD
View
Price last confirmed 42 days ago
22 more retailers have this diamond
Prices start from $3,394 USDSave up to $146 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.

B+
1.20ct Round
$3,394 USD