Round|Lab Grown|IGI

1.20ct D IF Round Lab Grown Diamond

ID • D/IF • IGI LG835668212

Shape and cutting style on the report: Round brilliant

Certificate IGI LG835668212

Diamond specifications and retailer prices

From $384 USD
HK$3,000 HKD
As of October 30, 2026
Save $950 USD (71%) vs most expensive(unlock to see where)
13 retailers carry this diamond
Most expensive: $1,345 USD at Rare Carat · As of October 21, 2026
View at Rare Carat

About this 1.2ct lab-grown round diamond

This 1.2ct lab-grown round sits in the classic one-carat band, graded D colour (colourless) and IF clarity (flawless or internally-flawless), with a top-tier cut grade and certified by IGI LG835668212 or 835668212. Listed at 13 retailers as of October 26, 2026, with a 247% spread between the cheapest and most expensive listing. That is exactly the kind of price-discovery gap Carat Hunter was built to surface. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.20
Carat
D
Color
IF
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle34.1°
Pavilion angle41.3°
OriginLab Grown
Grading LabIGI
CertificateIGI LG835668212
Dimensions6.82 × 6.86 × 4.20 mm
L/W Ratio1.01
Girdle conditionFaceted
Cert comments
As Grown - No indication of post-growth treatment This Laboratory Grown Diamond was created by High Pressure High Temperature (HPHT) growth process Type II
Top View
6.82 mm6.86 mm1.20 ctD / IF
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG835668212
Side View
Table 59.0%Crown 34.1°Girdle: MED-STKPavilion 41.3°Culet: NoneDepth 61.4%

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: Oct 30
Current: $1,345 USD|Low: $384 USD|High: $1,355 USD|Avg: $834 USD|-0.7%
Rare Carat
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
October 30, 2026
Retailer 11$384 USD
Retailer 3$470 USD
Retailer 6$551 USD
Retailer 7$571 USD
Retailer 2$635 USD
Retailer 9$706 USD
Retailer 12$739 USD
Retailer 5$1,115 USD
Retailer 10$1,119 USD
Retailer 4$1,240 USD
Retailer 8$1,334 USD
Rare Carat$1,345 USD

17 data points across 12 retailers

13 retailers$384 USD to $1,334 USD

A
Cheapest Retailer
-
$384 USD
HK$3,000 HKD
A
Retailer 2
-
$470 USD
View
A
Retailer 3
-
$551 USD
€525 EUR
View
A
Retailer 4
-
$571 USD
ZAR 9,222 ZAR
View
B+
Retailer 5
-
$635 USD
£500 GBP
View
B+
Retailer 6
-
$706 USD
View
B+
Retailer 7
-
$739 USD
View
B
Retailer 8
-
$1,115 USD
A$1,716 AUD
View
B
Retailer 9
-
$1,119 USD
View
B
Retailer 10
-
$1,140 USD
View
B
Retailer 11
-
$1,240 USD
View
B
Retailer 12
-
$1,334 USD
£1,050 GBP
View
Most Expensive
Rare Carat
U-10364 · Oct 21
$1,345 USD
View
Price last confirmed 9 days ago
12 more retailers have this diamond
Prices start from $384 USDSave up to $950 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
$384 USD