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Oval|Lab Grown|IGI

3.10ct D FL Oval Lab Grown Diamond

EX • D/FL • IGI LG780667828

Shape and cutting style on the report: Oval brilliant

Certificate IGI LG780667828

Diamond specifications and retailer prices

From $2,291 NZD
$1,291 USD
As of October 24, 2026
Save $16,411 NZD (88%) vs most expensive(unlock to see where)
21 retailers carry this diamond
Most expensive: $28,229 NZD at Brilliant Earth · As of October 26, 2026
View at Brilliant Earth

About this 3.1ct lab-grown oval diamond

This 3.1ct lab-grown oval sits in the three to five carat band, graded D colour (colourless) and FL clarity (flawless or internally-flawless), with a top-tier cut grade and certified by IGI LG780667828 or 780667828. Listed at 21 retailers as of October 24, 2026, with a 716% spread between the cheapest and most expensive listing. That is exactly the kind of price-discovery gap Carat Hunter was built to surface. Lab-grown prices in the 2ct and up range have fallen 40 to 60% over the last 18 months. Use the cross-retailer spread above to find the lowest current listing.

The 4Cs

3.10
Carat
D
Colour
FL
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle35.9°
Pavilion angle40.3°
OriginLab Grown
Grading LabIGI
CertificateIGI LG780667828
Dimensions11.85 × 8.20 × 5.14 mm
L/W Ratio1.45
Girdle conditionFaceted
Culet sizePointed
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
11.85 mm8.20 mm3.10 ctD / FL
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG780667828
Side View
Table 58.0%Crown 35.9°Girdle: MED-STKPavilion 40.3°Culet: NoneDepth 62.7%

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 24
Current: $3,865 NZD|Low: $2,106 NZD|High: $26,359 NZD|Avg: $8,237 NZD|-33.6%
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
Retailer 17
Retailer 18
Retailer 19
Retailer 20
Retailer 21
October 26, 2026
Retailer 19$2,106 NZD
Retailer 17$2,291 NZD
Retailer 7$2,358 NZD
Retailer 11$2,443 NZD
Retailer 16$2,697 NZD
Retailer 4$3,437 NZD
Retailer 1$3,865 NZD
Retailer 2$4,091 NZD
Retailer 21$4,152 NZD
Retailer 18$4,679 NZD
Retailer 3$5,053 NZD
Retailer 15$6,202 NZD
Retailer 9$6,517 NZD
Retailer 10$7,522 NZD
Retailer 6$7,625 NZD
Retailer 12$8,673 NZD
Retailer 8$9,194 NZD
Retailer 13$9,564 NZD
Retailer 20$9,697 NZD
Retailer 5$18,701 NZD
Retailer 14$26,359 NZD

32 data points across 21 retailers

21 retailers$2,291 NZD to $18,701 NZD

Retailer 1
-
$2,106 NZD
$1,187 USD
Price last confirmed 7 days ago
A
Retailer 2
-
$2,291 NZD
$1,291 USD
View
A
Retailer 3
-
$2,443 NZD
$1,377 USD
View
A
Retailer 4
-
$2,697 NZD
$1,520 USD
View
Retailer 5
-
$3,437 NZD
$1,937 USD
View
Price last confirmed 7 days ago
Retailer 6
-
$3,577 NZD
$2,016 USD
View
Price last confirmed 18 days ago
A
Retailer 7
-
$3,865 NZD
£1,715 GBP
View
A
Retailer 8
-
$4,152 NZD
$2,340 USD
View
A
Retailer 9
-
$4,679 NZD
$2,637 USD
View
A
Retailer 10
-
$5,053 NZD
$2,848 USD
View
B+
Retailer 11
-
$6,202 NZD
ZAR 56,474 ZAR
View
B+
Retailer 12
-
$6,517 NZD
£2,892 GBP
View
B+
Retailer 13
-
$7,522 NZD
$4,239 USD
View
B+
Retailer 14
-
$7,625 NZD
$4,297 USD
View
B+
Retailer 15
-
$8,673 NZD
£3,849 GBP
View
B+
Retailer 16
-
$9,194 NZD
$5,182 USD
View
B+
Retailer 17
-
$9,564 NZD
$5,390 USD
View
Retailer 18
-
$9,697 NZD
$5,465 USD
View
Price last confirmed 12 days ago
B
Retailer 19
-
$18,701 NZD
$10,540 USD
View
Retailer 20
-
$26,359 NZD
$14,856 USD
View
Price last confirmed 9 days ago
Most Expensive
Brilliant Earth
21805140A · Oct 26
$28,229 NZD
$15,910 USD
View
Price under review
20 more retailers have this diamond
Prices start from $2,291 NZDSave up to $16,411 NZD

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
3.10ct Oval
$2,291 NZD