Round|Natural|GIA

1.20ct E SI2 Round Natural Diamond

EX • E/SI2 • GIA 2507071877

Certificate GIA 2507071877

Diamond specifications and retailer prices

From $3,430 USD
As of November 1, 2026
Save $4,065 USD (54%) vs most expensive(unlock to see where)
17 retailers carry this diamond
Most expensive: $7,495 USD at NZ Jewellers · As of October 30, 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 E colour (colourless) and SI2 clarity (slightly-included), with a top-tier cut grade and certified by GIA 2507071877. Listed at 17 retailers as of October 30, 2026, with prices from $3,430 to $7,495, a $4,065 spread on the same certified stone. NZ Jewellers lists it at $7,495. 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
E
Color
SI2
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishVery Good
SymmetryExcellent
FluorescenceMedium
Crown angle36°
Pavilion angle40.8°
OriginNatural
Grading LabGIA
CertificateGIA 2507071877
Dimensions6.82 × 6.77 × 4.22 mm
L/W Ratio1.01
Star length50%
Lower girdle80%
Top View
6.82 mm6.77 mm1.20 ctE / SI2
OriginNatural
CutExcellent
PolishVery Good
SymmetryExcellent
FluorescenceMedium
CertificateGIA 2507071877
Side View
Table 58.0%Crown 36°Girdle: MED-STKPavilion 40.8°Culet: NoneDepth 62.1%

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: $7,495 USD|Low: $3,430 USD|High: $7,495 USD|Avg: $4,613 USD
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
November 2, 2026
Retailer 6$3,430 USD
Retailer 13$3,500 USD
Retailer 7$3,510 USD
Retailer 11$3,796 USD
Retailer 4$3,897 USD
Retailer 5$3,897 USD
Retailer 14$3,936 USD
Retailer 15$4,047 USD
Retailer 16$4,087 USD
Retailer 10$4,337 USD
Retailer 9$4,497 USD
Retailer 17$4,541 USD
Retailer 2$4,616 USD
Retailer 8$4,868 USD
Retailer 3$6,283 USD
Retailer 12$6,851 USD
NZ Jewellers$7,495 USD

34 data points across 17 retailers

17 retailers$3,430 USD to $7,495 USD

A
Cheapest Retailer
-
$3,430 USD
A
Retailer 2
-
$3,500 USD
View
A
Retailer 3
-
$3,510 USD
View
B+
Retailer 4
-
$3,796 USD
View
B+
Retailer 5
-
$3,897 USD
View
Retailer 6
-
$3,897 USD
View
Price last confirmed 8 days ago
B+
Retailer 7
-
$3,936 USD
View
Retailer 8
-
$4,047 USD
View
Price last confirmed 8 days ago
B+
Retailer 9
-
$4,087 USD
View
B+
Retailer 10
-
$4,337 USD
View
B+
Retailer 11
-
$4,497 USD
View
B+
Retailer 12
-
$4,541 USD
View
B+
Retailer 13
-
$4,616 USD
View
Retailer 14
-
$4,868 USD
View
Price last confirmed 14 days ago
B
Retailer 15
-
$6,283 USD
View
B
Retailer 16
-
$6,851 USD
View
Most Expensive
B
NZ Jewellers
1060eb82-9990-42f9-97a0-fa67a846bcfc · Oct 30
$7,495 USD
View
16 more retailers have this diamond
Prices start from $3,430 USDSave up to $4,065 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
$3,430 USD