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Oval|Lab Grown|GIA

3.12ct D SI1 Oval Lab Grown Diamond

EX • D/SI1 • GIA 7481210106

Certificate GIA 7481210106

Diamond specifications and retailer prices

From $1,445 USD
As of October 29, 2026
Save $4,414 USD (75%) vs most expensive(unlock to see where)
12 retailers carry this diamond
Most expensive: $8,880 USD at Do Amore Diamonds · As of October 29, 2026
View at Do Amore Diamonds

About this 3.12ct lab-grown oval diamond

This 3.12ct lab-grown oval sits in the three to five carat band, graded D colour (colourless) and SI1 clarity (slightly-included), with a top-tier cut grade stated by the retailer rather than the lab and certified by GIA 7481210106. Listed at 12 retailers as of October 29, 2026, with a 305% 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

3.12
Carat
D
Color
SI1
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
OriginLab Grown
Grading LabGIA
CertificateGIA 7481210106
Dimensions11.66 × 8.29 × 5.12 mm
L/W Ratio1.41
Girdle conditionFaceted
Culet sizeNone
Top View
11.66 mm8.29 mm3.12 ctD / SI1
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 7481210106
Side View
Table 60.0%CrownGirdle: MED-THKPavilionCulet: NoneDepth 61.7%

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 29
Current: $8,880 USD|Low: $1,445 USD|High: $8,880 USD|Avg: $3,568 USD
Do Amore Diamonds
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
October 30, 2026
Retailer 4$1,445 USD
Retailer 15$1,652 USD
Retailer 14$1,806 USD
Retailer 9$1,935 USD
Retailer 8$2,306 USD
Retailer 12$2,371 USD
Retailer 2$2,417 USD
Retailer 11$2,792 USD
Retailer 13$4,088 USD
Retailer 6$4,260 USD
Retailer 7$4,260 USD
Retailer 10$4,746 USD
Retailer 5$5,120 USD
Retailer 3$5,859 USD
Do Amore Diamonds$8,880 USD

25 data points across 15 retailers

12 retailers$1,445 USD to $5,859 USD

B+
Cheapest Retailer
-
$1,445 USD
Final sale: no returns
B+
Retailer 2
-
$1,652 USD
View
B+
Retailer 3
-
$1,806 USD
View
B+
Retailer 4
-
$1,935 USD
View
B+
Retailer 5
-
$2,306 USD
£1,816 GBP
View
B
Retailer 6
-
$2,371 USD
View
B+
Retailer 7
-
$2,417 USD
£1,903 GBP
View
B
Retailer 8
-
$2,792 USD
View
B
Retailer 9
-
$4,088 USD
View
B
Retailer 10
-
$4,746 USD
£3,737 GBP
View
B
Retailer 11
-
$5,859 USD
View
Most Expensive
Do Amore Diamonds
27-76E4CB35D · Oct 29
$8,880 USD
View
Price under review
11 more retailers have this diamond
Prices start from $1,445 USDSave up to $4,414 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+
3.12ct Oval
$1,445 USD