Round|Natural|GIA

1.20ct G SI1 Round Natural Diamond

EX • G/SI1 • GIA 6535380466

Certificate GIA 6535380466

Diamond specifications and retailer prices

From $3,445 USD
As of October 25, 2026
Save $4,236 USD (55%) vs most expensive(unlock to see where)
30 retailers carry this diamond
Most expensive: $7,681 USD at NZ Jewellers · As of October 20, 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 G colour (near-colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by GIA 6535380466. Listed at 30 retailers as of October 25, 2026, with a 123% 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
G
Color
SI1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle36.5°
Pavilion angle41°
OriginNatural
Grading LabGIA
CertificateGIA 6535380466
Dimensions6.78 × 6.76 × 4.25 mm
L/W Ratio1.00
Top View
6.78 mm6.76 mm1.20 ctG / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 6535380466
Side View
Table 57.0%Crown 36.5°Girdle: MED-STKPavilion 41°Culet: NoneDepth 62.8%

Caratlytics Score

How it works →
B+
Very Good
Strong quality and value balance
Unlock full score analysis
See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Oct 25
Current: $4,990 USD|Low: $3,379 USD|High: $7,107 USD|Avg: $4,780 USD|+4.0%
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
October 30, 2026
Retailer 14$3,445 USD
Retailer 5$3,514 USD
Retailer 2$3,686 USD
Retailer 4$3,810 USD
Retailer 11$3,994 USD
Retailer 13$4,227 USD
Retailer 7$4,482 USD
Retailer 3$4,727 USD
Retailer 12$4,966 USD
Retailer 6$4,988 USD
Retailer 1$4,990 USD
Retailer 10$5,368 USD
Retailer 8$7,060 USD
Retailer 9$7,087 USD

30 data points across 14 retailers

30 retailers$3,445 USD to $7,681 USD

B+
Cheapest Retailer
-
$3,445 USD
B+
Retailer 2
-
$3,514 USD
View
B+
Retailer 3
-
$3,686 USD
View
Final sale: no returns
B+
Retailer 4
-
$3,810 USD
View
B+
Retailer 5
-
$3,984 USD
View
B+
Retailer 6
-
$3,994 USD
View
Retailer 7
-
$3,994 USD
View
Price last confirmed 43 days ago
Retailer 8
-
$3,994 USD
View
Price last confirmed 8 days ago
Retailer 9
-
$3,994 USD
View
Price last confirmed 29 days ago
Retailer 10
-
$3,994 USD
View
Price last confirmed 31 days ago
B+
Retailer 11
-
$4,227 USD
View
Retailer 12
-
$4,227 USD
View
Price last confirmed 25 days ago
B
Retailer 13
-
$4,330 USD
View
B
Retailer 14
-
$4,330 USD
View
B+
Retailer 15
-
$4,480 USD
View
B+
Retailer 16
-
$4,482 USD
£3,529 GBP
View
Retailer 17
-
$4,608 USD
View
Price last confirmed 31 days ago
Retailer 18
-
$4,608 USD
View
Price last confirmed 38 days ago
B+
Retailer 19
-
$4,608 USD
View
Retailer 20
-
$4,727 USD
A$7,272 AUD
View
Price last confirmed 26 days ago
B
Retailer 21
-
$4,966 USD
£3,910 GBP
View
Retailer 22
-
$4,988 USD
View
Price last confirmed 25 days ago
B+
Retailer 23
-
$4,990 USD
€4,752 EUR
View
B
Retailer 24
-
$5,368 USD
ZAR 86,726 ZAR
View
B
Retailer 25
-
$7,060 USD
£5,559 GBP
View
B
Retailer 26
-
$7,087 USD
£5,580 GBP
View
Retailer 27
-
$7,681 USD
View
Price last confirmed 40 days ago
B
Retailer 28
-
$7,681 USD
View
Retailer 29
-
$7,681 USD
View
Price last confirmed 32 days ago
Most Expensive
NZ Jewellers
dbd2aadf-cce1-4d96-8aad-c53072bb425a · Oct 20
$7,681 USD
View
Price last confirmed 10 days ago
29 more retailers have this diamond
Prices start from $3,445 USDSave up to $4,236 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
$3,445 USD